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Finding the Fourth Proportional to 523,129.77, 784,701.95 and 149,152.77

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Solution

The fourth proportional to 523,129.77, 784,701.95 and 149,152.77 is: 223,731.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,129.77 : 784,701.95 = 149,152.77 : x
  2. Step 2: Convert to fraction form
    523,129.77/784,701.95 = 149,152.77/x
  3. Step 3: Cross multiply
    523,129.77x = 784,701.95 × 149,152.77
  4. Step 4: Simplify right side
    523,129.77x = 117,040,468,721.14
  5. Step 5: Solve for x
    x = 117,040,468,721.14/523,129.77
  6. Step 6: Final answer
    x = 223,731.23

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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.