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Finding the Fourth Proportional to 284,318.76, 426,478.68 and 73,956.36

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Solution

The fourth proportional to 284,318.76, 426,478.68 and 73,956.36 is: 110,934.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,318.76 : 426,478.68 = 73,956.36 : x
  2. Step 2: Convert to fraction form
    284,318.76/426,478.68 = 73,956.36/x
  3. Step 3: Cross multiply
    284,318.76x = 426,478.68 × 73,956.36
  4. Step 4: Simplify right side
    284,318.76x = 31,540,810,790.40
  5. Step 5: Solve for x
    x = 31,540,810,790.40/284,318.76
  6. Step 6: Final answer
    x = 110,934.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.