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Finding the Fourth Proportional to 602.40, 903.61 and 236.99

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Solution

The fourth proportional to 602.40, 903.61 and 236.99 is: 355.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.40 : 903.61 = 236.99 : x
  2. Step 2: Convert to fraction form
    602.40/903.61 = 236.99/x
  3. Step 3: Cross multiply
    602.40x = 903.61 × 236.99
  4. Step 4: Simplify right side
    602.40x = 214,147.76
  5. Step 5: Solve for x
    x = 214,147.76/602.40
  6. Step 6: Final answer
    x = 355.49

Related Problems

Find fourth proportional to 301.20, 451.80 and 118.50
Half scale
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Double scale
Find fourth proportional to 603.40, 905.11 and 237.99
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.