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Finding the Fourth Proportional to 181,008.59, 249,788.02 and 100,434.38

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Solution

The fourth proportional to 181,008.59, 249,788.02 and 100,434.38 is: 138,597.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,008.59 : 249,788.02 = 100,434.38 : x
  2. Step 2: Convert to fraction form
    181,008.59/249,788.02 = 100,434.38/x
  3. Step 3: Cross multiply
    181,008.59x = 249,788.02 × 100,434.38
  4. Step 4: Simplify right side
    181,008.59x = 25,087,304,920.13
  5. Step 5: Solve for x
    x = 25,087,304,920.13/181,008.59
  6. Step 6: Final answer
    x = 138,597.32

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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.