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Finding the Fourth Proportional to 491,720.60, 737,712.16 and 176,209.40

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Solution

The fourth proportional to 491,720.60, 737,712.16 and 176,209.40 is: 264,361.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,720.60 : 737,712.16 = 176,209.40 : x
  2. Step 2: Convert to fraction form
    491,720.60/737,712.16 = 176,209.40/x
  3. Step 3: Cross multiply
    491,720.60x = 737,712.16 × 176,209.40
  4. Step 4: Simplify right side
    491,720.60x = 129,991,816,415.25
  5. Step 5: Solve for x
    x = 129,991,816,415.25/491,720.60
  6. Step 6: Final answer
    x = 264,361.14

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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.