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Finding the Fourth Proportional to 198,889.08, 274,501.02 and 127,265.64

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Solution

The fourth proportional to 198,889.08, 274,501.02 and 127,265.64 is: 175,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,889.08 : 274,501.02 = 127,265.64 : x
  2. Step 2: Convert to fraction form
    198,889.08/274,501.02 = 127,265.64/x
  3. Step 3: Cross multiply
    198,889.08x = 274,501.02 × 127,265.64
  4. Step 4: Simplify right side
    198,889.08x = 34,934,547,990.95
  5. Step 5: Solve for x
    x = 34,934,547,990.95/198,889.08
  6. Step 6: Final answer
    x = 175,648.40

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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.