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Finding the Fourth Proportional to 220,094.06, 303,731.08 and 129,453.86

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Solution

The fourth proportional to 220,094.06, 303,731.08 and 129,453.86 is: 178,647.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,094.06 : 303,731.08 = 129,453.86 : x
  2. Step 2: Convert to fraction form
    220,094.06/303,731.08 = 129,453.86/x
  3. Step 3: Cross multiply
    220,094.06x = 303,731.08 × 129,453.86
  4. Step 4: Simplify right side
    220,094.06x = 39,319,160,707.97
  5. Step 5: Solve for x
    x = 39,319,160,707.97/220,094.06
  6. Step 6: Final answer
    x = 178,647.08

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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.