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Finding the Fourth Proportional to 218,602.80, 301,708.80 and 133,747.20

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Solution

The fourth proportional to 218,602.80, 301,708.80 and 133,747.20 is: 184,593.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,602.80 : 301,708.80 = 133,747.20 : x
  2. Step 2: Convert to fraction form
    218,602.80/301,708.80 = 133,747.20/x
  3. Step 3: Cross multiply
    218,602.80x = 301,708.80 × 133,747.20
  4. Step 4: Simplify right side
    218,602.80x = 40,352,707,215.36
  5. Step 5: Solve for x
    x = 40,352,707,215.36/218,602.80
  6. Step 6: Final answer
    x = 184,593.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.