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Finding the Fourth Proportional to 272,001.60, 408,040.80 and 84,993.60

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Solution

The fourth proportional to 272,001.60, 408,040.80 and 84,993.60 is: 127,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,001.60 : 408,040.80 = 84,993.60 : x
  2. Step 2: Convert to fraction form
    272,001.60/408,040.80 = 84,993.60/x
  3. Step 3: Cross multiply
    272,001.60x = 408,040.80 × 84,993.60
  4. Step 4: Simplify right side
    272,001.60x = 34,680,856,538.88
  5. Step 5: Solve for x
    x = 34,680,856,538.88/272,001.60
  6. Step 6: Final answer
    x = 127,502.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.