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Finding the Fourth Proportional to 249,882.83, 374,823.95 and 81,402.89

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Solution

The fourth proportional to 249,882.83, 374,823.95 and 81,402.89 is: 122,104.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,882.83 : 374,823.95 = 81,402.89 : x
  2. Step 2: Convert to fraction form
    249,882.83/374,823.95 = 81,402.89/x
  3. Step 3: Cross multiply
    249,882.83x = 374,823.95 × 81,402.89
  4. Step 4: Simplify right side
    249,882.83x = 30,511,750,490.08
  5. Step 5: Solve for x
    x = 30,511,750,490.08/249,882.83
  6. Step 6: Final answer
    x = 122,104.23

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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.