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Finding the Fourth Proportional to 437,615.60, 656,423.40 and 248,658.80

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Solution

The fourth proportional to 437,615.60, 656,423.40 and 248,658.80 is: 372,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,615.60 : 656,423.40 = 248,658.80 : x
  2. Step 2: Convert to fraction form
    437,615.60/656,423.40 = 248,658.80/x
  3. Step 3: Cross multiply
    437,615.60x = 656,423.40 × 248,658.80
  4. Step 4: Simplify right side
    437,615.60x = 163,225,454,935.92
  5. Step 5: Solve for x
    x = 163,225,454,935.92/437,615.60
  6. Step 6: Final answer
    x = 372,988.20

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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.