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Finding the Fourth Proportional to 437,915.20, 656,872.80 and 248,302.30

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Solution

The fourth proportional to 437,915.20, 656,872.80 and 248,302.30 is: 372,453.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,915.20 : 656,872.80 = 248,302.30 : x
  2. Step 2: Convert to fraction form
    437,915.20/656,872.80 = 248,302.30/x
  3. Step 3: Cross multiply
    437,915.20x = 656,872.80 × 248,302.30
  4. Step 4: Simplify right side
    437,915.20x = 163,103,027,047.44
  5. Step 5: Solve for x
    x = 163,103,027,047.44/437,915.20
  6. Step 6: Final answer
    x = 372,453.45

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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.