Home / 330,545.45-455,996.92-239,702.13

Finding the Fourth Proportional to 330,545.45, 455,996.92 and 239,702.13

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Solution

The fourth proportional to 330,545.45, 455,996.92 and 239,702.13 is: 330,675.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,545.45 : 455,996.92 = 239,702.13 : x
  2. Step 2: Convert to fraction form
    330,545.45/455,996.92 = 239,702.13/x
  3. Step 3: Cross multiply
    330,545.45x = 455,996.92 × 239,702.13
  4. Step 4: Simplify right side
    330,545.45x = 109,303,432,997.44
  5. Step 5: Solve for x
    x = 109,303,432,997.44/330,545.45
  6. Step 6: Final answer
    x = 330,675.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.