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Finding the Fourth Proportional to 256,937.38, 354,337.99 and 220,626.48

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Solution

The fourth proportional to 256,937.38, 354,337.99 and 220,626.48 is: 304,262.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,937.38 : 354,337.99 = 220,626.48 : x
  2. Step 2: Convert to fraction form
    256,937.38/354,337.99 = 220,626.48/x
  3. Step 3: Cross multiply
    256,937.38x = 354,337.99 × 220,626.48
  4. Step 4: Simplify right side
    256,937.38x = 78,176,342,541.82
  5. Step 5: Solve for x
    x = 78,176,342,541.82/256,937.38
  6. Step 6: Final answer
    x = 304,262.24

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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.