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Finding the Fourth Proportional to 321,366.56, 443,482.43 and 185,398.88

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Solution

The fourth proportional to 321,366.56, 443,482.43 and 185,398.88 is: 255,848.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,366.56 : 443,482.43 = 185,398.88 : x
  2. Step 2: Convert to fraction form
    321,366.56/443,482.43 = 185,398.88/x
  3. Step 3: Cross multiply
    321,366.56x = 443,482.43 × 185,398.88
  4. Step 4: Simplify right side
    321,366.56x = 82,221,142,677.27
  5. Step 5: Solve for x
    x = 82,221,142,677.27/321,366.56
  6. Step 6: Final answer
    x = 255,848.47

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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.