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Finding the Fourth Proportional to 356,545.72, 534,749.46 and 134,947

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Solution

The fourth proportional to 356,545.72, 534,749.46 and 134,947 is: 202,394.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,545.72 : 534,749.46 = 134,947 : x
  2. Step 2: Convert to fraction form
    356,545.72/534,749.46 = 134,947/x
  3. Step 3: Cross multiply
    356,545.72x = 534,749.46 × 134,947
  4. Step 4: Simplify right side
    356,545.72x = 72,162,835,378.62
  5. Step 5: Solve for x
    x = 72,162,835,378.62/356,545.72
  6. Step 6: Final answer
    x = 202,394.34

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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.