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Finding the Fourth Proportional to 222,275.50, 306,737.71 and 120,298.66

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Solution

The fourth proportional to 222,275.50, 306,737.71 and 120,298.66 is: 166,010.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,275.50 : 306,737.71 = 120,298.66 : x
  2. Step 2: Convert to fraction form
    222,275.50/306,737.71 = 120,298.66/x
  3. Step 3: Cross multiply
    222,275.50x = 306,737.71 × 120,298.66
  4. Step 4: Simplify right side
    222,275.50x = 36,900,135,484.47
  5. Step 5: Solve for x
    x = 36,900,135,484.47/222,275.50
  6. Step 6: Final answer
    x = 166,010.81

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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.