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Finding the Fourth Proportional to 474,993.36, 712,536.84 and 138,036.96

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Solution

The fourth proportional to 474,993.36, 712,536.84 and 138,036.96 is: 207,069.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,993.36 : 712,536.84 = 138,036.96 : x
  2. Step 2: Convert to fraction form
    474,993.36/712,536.84 = 138,036.96/x
  3. Step 3: Cross multiply
    474,993.36x = 712,536.84 × 138,036.96
  4. Step 4: Simplify right side
    474,993.36x = 98,356,419,281.61
  5. Step 5: Solve for x
    x = 98,356,419,281.61/474,993.36
  6. Step 6: Final answer
    x = 207,069.04

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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.