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Finding the Fourth Proportional to 284,310.08, 392,304.72 and 188,956.88

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Solution

The fourth proportional to 284,310.08, 392,304.72 and 188,956.88 is: 260,731.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,310.08 : 392,304.72 = 188,956.88 : x
  2. Step 2: Convert to fraction form
    284,310.08/392,304.72 = 188,956.88/x
  3. Step 3: Cross multiply
    284,310.08x = 392,304.72 × 188,956.88
  4. Step 4: Simplify right side
    284,310.08x = 74,128,675,900.47
  5. Step 5: Solve for x
    x = 74,128,675,900.47/284,310.08
  6. Step 6: Final answer
    x = 260,731.79

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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.