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Finding the Fourth Proportional to 316,830.26, 437,614.17 and 256,469.06

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Solution

The fourth proportional to 316,830.26, 437,614.17 and 256,469.06 is: 354,241.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,830.26 : 437,614.17 = 256,469.06 : x
  2. Step 2: Convert to fraction form
    316,830.26/437,614.17 = 256,469.06/x
  3. Step 3: Cross multiply
    316,830.26x = 437,614.17 × 256,469.06
  4. Step 4: Simplify right side
    316,830.26x = 112,234,494,822.58
  5. Step 5: Solve for x
    x = 112,234,494,822.58/316,830.26
  6. Step 6: Final answer
    x = 354,241.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.