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Finding the Fourth Proportional to 171,030.20, 256,545.30 and 147,702.20

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Solution

The fourth proportional to 171,030.20, 256,545.30 and 147,702.20 is: 221,553.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,030.20 : 256,545.30 = 147,702.20 : x
  2. Step 2: Convert to fraction form
    171,030.20/256,545.30 = 147,702.20/x
  3. Step 3: Cross multiply
    171,030.20x = 256,545.30 × 147,702.20
  4. Step 4: Simplify right side
    171,030.20x = 37,892,305,209.66
  5. Step 5: Solve for x
    x = 37,892,305,209.66/171,030.20
  6. Step 6: Final answer
    x = 221,553.30

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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.