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Finding the Fourth Proportional to 437,840.40, 656,979.30 and 248,446.20

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Solution

The fourth proportional to 437,840.40, 656,979.30 and 248,446.20 is: 372,793.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,840.40 : 656,979.30 = 248,446.20 : x
  2. Step 2: Convert to fraction form
    437,840.40/656,979.30 = 248,446.20/x
  3. Step 3: Cross multiply
    437,840.40x = 656,979.30 × 248,446.20
  4. Step 4: Simplify right side
    437,840.40x = 163,224,010,563.66
  5. Step 5: Solve for x
    x = 163,224,010,563.66/437,840.40
  6. Step 6: Final answer
    x = 372,793.40

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1.5x scale

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.