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Finding the Fourth Proportional to 223,780.80, 335,672.04 and 90,663.60

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Solution

The fourth proportional to 223,780.80, 335,672.04 and 90,663.60 is: 135,995.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,780.80 : 335,672.04 = 90,663.60 : x
  2. Step 2: Convert to fraction form
    223,780.80/335,672.04 = 90,663.60/x
  3. Step 3: Cross multiply
    223,780.80x = 335,672.04 × 90,663.60
  4. Step 4: Simplify right side
    223,780.80x = 30,433,235,565.74
  5. Step 5: Solve for x
    x = 30,433,235,565.74/223,780.80
  6. Step 6: Final answer
    x = 135,995.74

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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.