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Finding the Fourth Proportional to 317,565.68, 438,275.51 and 181,612.28

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Solution

The fourth proportional to 317,565.68, 438,275.51 and 181,612.28 is: 250,644.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,565.68 : 438,275.51 = 181,612.28 : x
  2. Step 2: Convert to fraction form
    317,565.68/438,275.51 = 181,612.28/x
  3. Step 3: Cross multiply
    317,565.68x = 438,275.51 × 181,612.28
  4. Step 4: Simplify right side
    317,565.68x = 79,596,213,731.20
  5. Step 5: Solve for x
    x = 79,596,213,731.20/317,565.68
  6. Step 6: Final answer
    x = 250,644.89

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1.5x scale

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.