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Finding the Fourth Proportional to 381,337.57, 526,292.54 and 220,192.43

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Solution

The fourth proportional to 381,337.57, 526,292.54 and 220,192.43 is: 303,892.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,337.57 : 526,292.54 = 220,192.43 : x
  2. Step 2: Convert to fraction form
    381,337.57/526,292.54 = 220,192.43/x
  3. Step 3: Cross multiply
    381,337.57x = 526,292.54 × 220,192.43
  4. Step 4: Simplify right side
    381,337.57x = 115,885,630,366.77
  5. Step 5: Solve for x
    x = 115,885,630,366.77/381,337.57
  6. Step 6: Final answer
    x = 303,892.51

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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.