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Finding the Fourth Proportional to 375,522.82, 518,220.88 and 203,445.16

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Solution

The fourth proportional to 375,522.82, 518,220.88 and 203,445.16 is: 280,753.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,522.82 : 518,220.88 = 203,445.16 : x
  2. Step 2: Convert to fraction form
    375,522.82/518,220.88 = 203,445.16/x
  3. Step 3: Cross multiply
    375,522.82x = 518,220.88 × 203,445.16
  4. Step 4: Simplify right side
    375,522.82x = 105,429,529,846.94
  5. Step 5: Solve for x
    x = 105,429,529,846.94/375,522.82
  6. Step 6: Final answer
    x = 280,753.99

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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.