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Finding the Fourth Proportional to 284,442.32, 392,505 and 163,551.44

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Solution

The fourth proportional to 284,442.32, 392,505 and 163,551.44 is: 225,686.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,442.32 : 392,505 = 163,551.44 : x
  2. Step 2: Convert to fraction form
    284,442.32/392,505 = 163,551.44/x
  3. Step 3: Cross multiply
    284,442.32x = 392,505 × 163,551.44
  4. Step 4: Simplify right side
    284,442.32x = 64,194,757,957.20
  5. Step 5: Solve for x
    x = 64,194,757,957.20/284,442.32
  6. Step 6: Final answer
    x = 225,686.38

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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.