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Finding the Fourth Proportional to 317,209.80, 437,635.98 and 181,145.64

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Solution

The fourth proportional to 317,209.80, 437,635.98 and 181,145.64 is: 249,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,209.80 : 437,635.98 = 181,145.64 : x
  2. Step 2: Convert to fraction form
    317,209.80/437,635.98 = 181,145.64/x
  3. Step 3: Cross multiply
    317,209.80x = 437,635.98 × 181,145.64
  4. Step 4: Simplify right side
    317,209.80x = 79,275,849,684.13
  5. Step 5: Solve for x
    x = 79,275,849,684.13/317,209.80
  6. Step 6: Final answer
    x = 249,916.14

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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.