Home / 165,330.60-247,339.80-143,387.70

Finding the Fourth Proportional to 165,330.60, 247,339.80 and 143,387.70

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Solution

The fourth proportional to 165,330.60, 247,339.80 and 143,387.70 is: 214,512.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,330.60 : 247,339.80 = 143,387.70 : x
  2. Step 2: Convert to fraction form
    165,330.60/247,339.80 = 143,387.70/x
  3. Step 3: Cross multiply
    165,330.60x = 247,339.80 × 143,387.70
  4. Step 4: Simplify right side
    165,330.60x = 35,465,485,040.46
  5. Step 5: Solve for x
    x = 35,465,485,040.46/165,330.60
  6. Step 6: Final answer
    x = 214,512.53

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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.