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Finding the Fourth Proportional to 431,367.70, 595,288.02 and 240,376.90

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Solution

The fourth proportional to 431,367.70, 595,288.02 and 240,376.90 is: 331,720.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,367.70 : 595,288.02 = 240,376.90 : x
  2. Step 2: Convert to fraction form
    431,367.70/595,288.02 = 240,376.90/x
  3. Step 3: Cross multiply
    431,367.70x = 595,288.02 × 240,376.90
  4. Step 4: Simplify right side
    431,367.70x = 143,093,488,854.74
  5. Step 5: Solve for x
    x = 143,093,488,854.74/431,367.70
  6. Step 6: Final answer
    x = 331,720.45

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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.