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Finding the Fourth Proportional to 559,474.80, 839,123.10 and 185,497.80

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Solution

The fourth proportional to 559,474.80, 839,123.10 and 185,497.80 is: 278,217.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,474.80 : 839,123.10 = 185,497.80 : x
  2. Step 2: Convert to fraction form
    559,474.80/839,123.10 = 185,497.80/x
  3. Step 3: Cross multiply
    559,474.80x = 839,123.10 × 185,497.80
  4. Step 4: Simplify right side
    559,474.80x = 155,655,488,979.18
  5. Step 5: Solve for x
    x = 155,655,488,979.18/559,474.80
  6. Step 6: Final answer
    x = 278,217.16

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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.