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Finding the Fourth Proportional to 220,009.76, 303,611.68 and 119,407.76

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Solution

The fourth proportional to 220,009.76, 303,611.68 and 119,407.76 is: 164,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,009.76 : 303,611.68 = 119,407.76 : x
  2. Step 2: Convert to fraction form
    220,009.76/303,611.68 = 119,407.76/x
  3. Step 3: Cross multiply
    220,009.76x = 303,611.68 × 119,407.76
  4. Step 4: Simplify right side
    220,009.76x = 36,253,590,618.64
  5. Step 5: Solve for x
    x = 36,253,590,618.64/220,009.76
  6. Step 6: Final answer
    x = 164,781.74

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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.