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Finding the Fourth Proportional to 222,545.76, 307,064.64 and 131,856.40

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Solution

The fourth proportional to 222,545.76, 307,064.64 and 131,856.40 is: 181,933.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,545.76 : 307,064.64 = 131,856.40 : x
  2. Step 2: Convert to fraction form
    222,545.76/307,064.64 = 131,856.40/x
  3. Step 3: Cross multiply
    222,545.76x = 307,064.64 × 131,856.40
  4. Step 4: Simplify right side
    222,545.76x = 40,488,437,997.70
  5. Step 5: Solve for x
    x = 40,488,437,997.70/222,545.76
  6. Step 6: Final answer
    x = 181,933.09

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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.