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Finding the Fourth Proportional to 161,808.10, 242,712.15 and 144,700.90

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Solution

The fourth proportional to 161,808.10, 242,712.15 and 144,700.90 is: 217,051.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,808.10 : 242,712.15 = 144,700.90 : x
  2. Step 2: Convert to fraction form
    161,808.10/242,712.15 = 144,700.90/x
  3. Step 3: Cross multiply
    161,808.10x = 242,712.15 × 144,700.90
  4. Step 4: Simplify right side
    161,808.10x = 35,120,666,545.94
  5. Step 5: Solve for x
    x = 35,120,666,545.94/161,808.10
  6. Step 6: Final answer
    x = 217,051.35

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1.5x scale

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.