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Finding the Fourth Proportional to 220,422.70, 304,186.35 and 119,822.86

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Solution

The fourth proportional to 220,422.70, 304,186.35 and 119,822.86 is: 165,357.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,422.70 : 304,186.35 = 119,822.86 : x
  2. Step 2: Convert to fraction form
    220,422.70/304,186.35 = 119,822.86/x
  3. Step 3: Cross multiply
    220,422.70x = 304,186.35 × 119,822.86
  4. Step 4: Simplify right side
    220,422.70x = 36,448,478,429.96
  5. Step 5: Solve for x
    x = 36,448,478,429.96/220,422.70
  6. Step 6: Final answer
    x = 165,357.19

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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.