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Finding the Fourth Proportional to 321,275.71, 443,218.06 and 185,277.12

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Solution

The fourth proportional to 321,275.71, 443,218.06 and 185,277.12 is: 255,600.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,275.71 : 443,218.06 = 185,277.12 : x
  2. Step 2: Convert to fraction form
    321,275.71/443,218.06 = 185,277.12/x
  3. Step 3: Cross multiply
    321,275.71x = 443,218.06 × 185,277.12
  4. Step 4: Simplify right side
    321,275.71x = 82,118,163,472.70
  5. Step 5: Solve for x
    x = 82,118,163,472.70/321,275.71
  6. Step 6: Final answer
    x = 255,600.29

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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.