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Finding the Fourth Proportional to 613.34, 846.41 and 377.19

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Solution

The fourth proportional to 613.34, 846.41 and 377.19 is: 520.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.34 : 846.41 = 377.19 : x
  2. Step 2: Convert to fraction form
    613.34/846.41 = 377.19/x
  3. Step 3: Cross multiply
    613.34x = 846.41 × 377.19
  4. Step 4: Simplify right side
    613.34x = 319,258.33
  5. Step 5: Solve for x
    x = 319,258.33/613.34
  6. Step 6: Final answer
    x = 520.53

Related Problems

Find fourth proportional to 306.67, 423.21 and 188.60
Half scale
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Double scale
Find fourth proportional to 614.34, 847.79 and 378.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.