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Finding the Fourth Proportional to 328,281.48, 453,401.91 and 220,664.61

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Solution

The fourth proportional to 328,281.48, 453,401.91 and 220,664.61 is: 304,768.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,281.48 : 453,401.91 = 220,664.61 : x
  2. Step 2: Convert to fraction form
    328,281.48/453,401.91 = 220,664.61/x
  3. Step 3: Cross multiply
    328,281.48x = 453,401.91 × 220,664.61
  4. Step 4: Simplify right side
    328,281.48x = 100,049,755,643.41
  5. Step 5: Solve for x
    x = 100,049,755,643.41/328,281.48
  6. Step 6: Final answer
    x = 304,768.20

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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.