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Finding the Fourth Proportional to 223,775.40, 335,663.10 and 129,167.40

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Solution

The fourth proportional to 223,775.40, 335,663.10 and 129,167.40 is: 193,751.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,775.40 : 335,663.10 = 129,167.40 : x
  2. Step 2: Convert to fraction form
    223,775.40/335,663.10 = 129,167.40/x
  3. Step 3: Cross multiply
    223,775.40x = 335,663.10 × 129,167.40
  4. Step 4: Simplify right side
    223,775.40x = 43,356,729,902.94
  5. Step 5: Solve for x
    x = 43,356,729,902.94/223,775.40
  6. Step 6: Final answer
    x = 193,751.10

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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.