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Finding the Fourth Proportional to 540.92, 745.45 and 374.84

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Solution

The fourth proportional to 540.92, 745.45 and 374.84 is: 516.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.92 : 745.45 = 374.84 : x
  2. Step 2: Convert to fraction form
    540.92/745.45 = 374.84/x
  3. Step 3: Cross multiply
    540.92x = 745.45 × 374.84
  4. Step 4: Simplify right side
    540.92x = 279,424.48
  5. Step 5: Solve for x
    x = 279,424.48/540.92
  6. Step 6: Final answer
    x = 516.57

Related Problems

Find fourth proportional to 270.46, 372.73 and 187.42
Half scale
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Double scale
Find fourth proportional to 541.92, 746.83 and 375.84
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.