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Finding the Fourth Proportional to 222,472.59, 307,019.84 and 121,870.59

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Solution

The fourth proportional to 222,472.59, 307,019.84 and 121,870.59 is: 168,185.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,472.59 : 307,019.84 = 121,870.59 : x
  2. Step 2: Convert to fraction form
    222,472.59/307,019.84 = 121,870.59/x
  3. Step 3: Cross multiply
    222,472.59x = 307,019.84 × 121,870.59
  4. Step 4: Simplify right side
    222,472.59x = 37,416,688,433.15
  5. Step 5: Solve for x
    x = 37,416,688,433.15/222,472.59
  6. Step 6: Final answer
    x = 168,185.61

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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.