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Finding the Fourth Proportional to 431,400.60, 595,338.66 and 240,407.46

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Solution

The fourth proportional to 431,400.60, 595,338.66 and 240,407.46 is: 331,765.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,400.60 : 595,338.66 = 240,407.46 : x
  2. Step 2: Convert to fraction form
    431,400.60/595,338.66 = 240,407.46/x
  3. Step 3: Cross multiply
    431,400.60x = 595,338.66 × 240,407.46
  4. Step 4: Simplify right side
    431,400.60x = 143,123,855,090.40
  5. Step 5: Solve for x
    x = 143,123,855,090.40/431,400.60
  6. Step 6: Final answer
    x = 331,765.54

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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.