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Finding the Fourth Proportional to 161,862.40, 242,851.20 and 156,102.40

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Solution

The fourth proportional to 161,862.40, 242,851.20 and 156,102.40 is: 234,209.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,862.40 : 242,851.20 = 156,102.40 : x
  2. Step 2: Convert to fraction form
    161,862.40/242,851.20 = 156,102.40/x
  3. Step 3: Cross multiply
    161,862.40x = 242,851.20 × 156,102.40
  4. Step 4: Simplify right side
    161,862.40x = 37,909,655,162.88
  5. Step 5: Solve for x
    x = 37,909,655,162.88/161,862.40
  6. Step 6: Final answer
    x = 234,209.15

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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.