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Finding the Fourth Proportional to 431,473.20, 595,435.78 and 240,498.70

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Solution

The fourth proportional to 431,473.20, 595,435.78 and 240,498.70 is: 331,889.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,473.20 : 595,435.78 = 240,498.70 : x
  2. Step 2: Convert to fraction form
    431,473.20/595,435.78 = 240,498.70/x
  3. Step 3: Cross multiply
    431,473.20x = 595,435.78 × 240,498.70
  4. Step 4: Simplify right side
    431,473.20x = 143,201,531,023.49
  5. Step 5: Solve for x
    x = 143,201,531,023.49/431,473.20
  6. Step 6: Final answer
    x = 331,889.75

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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.