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Finding the Fourth Proportional to 247,545.82, 371,445.35 and 117,861.40

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Solution

The fourth proportional to 247,545.82, 371,445.35 and 117,861.40 is: 176,852.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,545.82 : 371,445.35 = 117,861.40 : x
  2. Step 2: Convert to fraction form
    247,545.82/371,445.35 = 117,861.40/x
  3. Step 3: Cross multiply
    247,545.82x = 371,445.35 × 117,861.40
  4. Step 4: Simplify right side
    247,545.82x = 43,779,066,760.11
  5. Step 5: Solve for x
    x = 43,779,066,760.11/247,545.82
  6. Step 6: Final answer
    x = 176,852.38

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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.