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Finding the Fourth Proportional to 326,970.95, 490,165.83 and 127,244.66

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Solution

The fourth proportional to 326,970.95, 490,165.83 and 127,244.66 is: 190,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,970.95 : 490,165.83 = 127,244.66 : x
  2. Step 2: Convert to fraction form
    326,970.95/490,165.83 = 127,244.66/x
  3. Step 3: Cross multiply
    326,970.95x = 490,165.83 × 127,244.66
  4. Step 4: Simplify right side
    326,970.95x = 62,370,981,931.14
  5. Step 5: Solve for x
    x = 62,370,981,931.14/326,970.95
  6. Step 6: Final answer
    x = 190,753.90

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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.