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Finding the Fourth Proportional to 531.36, 793.40 and 476.16

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Solution

The fourth proportional to 531.36, 793.40 and 476.16 is: 710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.36 : 793.40 = 476.16 : x
  2. Step 2: Convert to fraction form
    531.36/793.40 = 476.16/x
  3. Step 3: Cross multiply
    531.36x = 793.40 × 476.16
  4. Step 4: Simplify right side
    531.36x = 377,785.34
  5. Step 5: Solve for x
    x = 377,785.34/531.36
  6. Step 6: Final answer
    x = 710.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.