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Finding the Fourth Proportional to 284,473.72, 392,585.66 and 163,615.04

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Solution

The fourth proportional to 284,473.72, 392,585.66 and 163,615.04 is: 225,795.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,473.72 : 392,585.66 = 163,615.04 : x
  2. Step 2: Convert to fraction form
    284,473.72/392,585.66 = 163,615.04/x
  3. Step 3: Cross multiply
    284,473.72x = 392,585.66 × 163,615.04
  4. Step 4: Simplify right side
    284,473.72x = 64,232,918,464.33
  5. Step 5: Solve for x
    x = 64,232,918,464.33/284,473.72
  6. Step 6: Final answer
    x = 225,795.61

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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.