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Finding the Fourth Proportional to 321,572.48, 443,763.12 and 185,595.76

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Solution

The fourth proportional to 321,572.48, 443,763.12 and 185,595.76 is: 256,118.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,572.48 : 443,763.12 = 185,595.76 : x
  2. Step 2: Convert to fraction form
    321,572.48/443,763.12 = 185,595.76/x
  3. Step 3: Cross multiply
    321,572.48x = 443,763.12 × 185,595.76
  4. Step 4: Simplify right side
    321,572.48x = 82,360,553,516.37
  5. Step 5: Solve for x
    x = 82,360,553,516.37/321,572.48
  6. Step 6: Final answer
    x = 256,118.17

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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.