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Finding the Fourth Proportional to 175,403.80, 263,040.90 and 86,627.80

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Solution

The fourth proportional to 175,403.80, 263,040.90 and 86,627.80 is: 129,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,403.80 : 263,040.90 = 86,627.80 : x
  2. Step 2: Convert to fraction form
    175,403.80/263,040.90 = 86,627.80/x
  3. Step 3: Cross multiply
    175,403.80x = 263,040.90 × 86,627.80
  4. Step 4: Simplify right side
    175,403.80x = 22,786,654,477.02
  5. Step 5: Solve for x
    x = 22,786,654,477.02/175,403.80
  6. Step 6: Final answer
    x = 129,909.70

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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.