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Finding the Fourth Proportional to 437,601.40, 656,343.78 and 122,031.88

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Solution

The fourth proportional to 437,601.40, 656,343.78 and 122,031.88 is: 183,031.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,601.40 : 656,343.78 = 122,031.88 : x
  2. Step 2: Convert to fraction form
    437,601.40/656,343.78 = 122,031.88/x
  3. Step 3: Cross multiply
    437,601.40x = 656,343.78 × 122,031.88
  4. Step 4: Simplify right side
    437,601.40x = 80,094,865,399.71
  5. Step 5: Solve for x
    x = 80,094,865,399.71/437,601.40
  6. Step 6: Final answer
    x = 183,031.56

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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.