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Finding the Fourth Proportional to 245,545.90, 367,930.05 and 156,640.30

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Solution

The fourth proportional to 245,545.90, 367,930.05 and 156,640.30 is: 234,712.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,545.90 : 367,930.05 = 156,640.30 : x
  2. Step 2: Convert to fraction form
    245,545.90/367,930.05 = 156,640.30/x
  3. Step 3: Cross multiply
    245,545.90x = 367,930.05 × 156,640.30
  4. Step 4: Simplify right side
    245,545.90x = 57,632,673,411.02
  5. Step 5: Solve for x
    x = 57,632,673,411.02/245,545.90
  6. Step 6: Final answer
    x = 234,712.42

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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.