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Finding the Fourth Proportional to 234,070.65, 350,511.98 and 128,770.65

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Solution

The fourth proportional to 234,070.65, 350,511.98 and 128,770.65 is: 192,829.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,070.65 : 350,511.98 = 128,770.65 : x
  2. Step 2: Convert to fraction form
    234,070.65/350,511.98 = 128,770.65/x
  3. Step 3: Cross multiply
    234,070.65x = 350,511.98 × 128,770.65
  4. Step 4: Simplify right side
    234,070.65x = 45,135,654,853.53
  5. Step 5: Solve for x
    x = 45,135,654,853.53/234,070.65
  6. Step 6: Final answer
    x = 192,829.19

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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.