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Finding the Fourth Proportional to 223,854.40, 335,781.60 and 90,666.10

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Solution

The fourth proportional to 223,854.40, 335,781.60 and 90,666.10 is: 135,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,854.40 : 335,781.60 = 90,666.10 : x
  2. Step 2: Convert to fraction form
    223,854.40/335,781.60 = 90,666.10/x
  3. Step 3: Cross multiply
    223,854.40x = 335,781.60 × 90,666.10
  4. Step 4: Simplify right side
    223,854.40x = 30,444,008,123.76
  5. Step 5: Solve for x
    x = 30,444,008,123.76/223,854.40
  6. Step 6: Final answer
    x = 135,999.15

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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.