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Finding the Fourth Proportional to 437,891.31, 604,276.30 and 256,723.90

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Solution

The fourth proportional to 437,891.31, 604,276.30 and 256,723.90 is: 354,270.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,891.31 : 604,276.30 = 256,723.90 : x
  2. Step 2: Convert to fraction form
    437,891.31/604,276.30 = 256,723.90/x
  3. Step 3: Cross multiply
    437,891.31x = 604,276.30 × 256,723.90
  4. Step 4: Simplify right side
    437,891.31x = 155,132,168,498.43
  5. Step 5: Solve for x
    x = 155,132,168,498.43/437,891.31
  6. Step 6: Final answer
    x = 354,270.95

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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.