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Finding the Fourth Proportional to 317,737.65, 476,606.25 and 81,080.37

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Solution

The fourth proportional to 317,737.65, 476,606.25 and 81,080.37 is: 121,620.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,737.65 : 476,606.25 = 81,080.37 : x
  2. Step 2: Convert to fraction form
    317,737.65/476,606.25 = 81,080.37/x
  3. Step 3: Cross multiply
    317,737.65x = 476,606.25 × 81,080.37
  4. Step 4: Simplify right side
    317,737.65x = 38,643,411,094.31
  5. Step 5: Solve for x
    x = 38,643,411,094.31/317,737.65
  6. Step 6: Final answer
    x = 121,620.50

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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.