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Finding the Fourth Proportional to 307,454.11, 461,321.28 and 157,799.49

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Solution

The fourth proportional to 307,454.11, 461,321.28 and 157,799.49 is: 236,771.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,454.11 : 461,321.28 = 157,799.49 : x
  2. Step 2: Convert to fraction form
    307,454.11/461,321.28 = 157,799.49/x
  3. Step 3: Cross multiply
    307,454.11x = 461,321.28 × 157,799.49
  4. Step 4: Simplify right side
    307,454.11x = 72,796,262,710.15
  5. Step 5: Solve for x
    x = 72,796,262,710.15/307,454.11
  6. Step 6: Final answer
    x = 236,771.15

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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.