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Finding the Fourth Proportional to 229,641.08, 344,459.18 and 71,870.90

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Solution

The fourth proportional to 229,641.08, 344,459.18 and 71,870.90 is: 107,805.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,641.08 : 344,459.18 = 71,870.90 : x
  2. Step 2: Convert to fraction form
    229,641.08/344,459.18 = 71,870.90/x
  3. Step 3: Cross multiply
    229,641.08x = 344,459.18 × 71,870.90
  4. Step 4: Simplify right side
    229,641.08x = 24,756,589,737.24
  5. Step 5: Solve for x
    x = 24,756,589,737.24/229,641.08
  6. Step 6: Final answer
    x = 107,805.58

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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.