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Finding the Fourth Proportional to 222,390.98, 306,775.05 and 131,658.42

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Solution

The fourth proportional to 222,390.98, 306,775.05 and 131,658.42 is: 181,614.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,390.98 : 306,775.05 = 131,658.42 : x
  2. Step 2: Convert to fraction form
    222,390.98/306,775.05 = 131,658.42/x
  3. Step 3: Cross multiply
    222,390.98x = 306,775.05 × 131,658.42
  4. Step 4: Simplify right side
    222,390.98x = 40,389,518,378.42
  5. Step 5: Solve for x
    x = 40,389,518,378.42/222,390.98
  6. Step 6: Final answer
    x = 181,614.91

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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.