Home / 391,233.18-586,889.52-135,032.40

Finding the Fourth Proportional to 391,233.18, 586,889.52 and 135,032.40

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Solution

The fourth proportional to 391,233.18, 586,889.52 and 135,032.40 is: 202,562.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,233.18 : 586,889.52 = 135,032.40 : x
  2. Step 2: Convert to fraction form
    391,233.18/586,889.52 = 135,032.40/x
  3. Step 3: Cross multiply
    391,233.18x = 586,889.52 × 135,032.40
  4. Step 4: Simplify right side
    391,233.18x = 79,249,100,420.45
  5. Step 5: Solve for x
    x = 79,249,100,420.45/391,233.18
  6. Step 6: Final answer
    x = 202,562.32

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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.