Home / 305,561.12-421,666.22-169,591.55

Finding the Fourth Proportional to 305,561.12, 421,666.22 and 169,591.55

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Solution

The fourth proportional to 305,561.12, 421,666.22 and 169,591.55 is: 234,031.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,561.12 : 421,666.22 = 169,591.55 : x
  2. Step 2: Convert to fraction form
    305,561.12/421,666.22 = 169,591.55/x
  3. Step 3: Cross multiply
    305,561.12x = 421,666.22 × 169,591.55
  4. Step 4: Simplify right side
    305,561.12x = 71,511,026,148.09
  5. Step 5: Solve for x
    x = 71,511,026,148.09/305,561.12
  6. Step 6: Final answer
    x = 234,031.83

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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.