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Finding the Fourth Proportional to 386,610, 533,522.76 and 225,575.76

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Solution

The fourth proportional to 386,610, 533,522.76 and 225,575.76 is: 311,295.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,610 : 533,522.76 = 225,575.76 : x
  2. Step 2: Convert to fraction form
    386,610/533,522.76 = 225,575.76/x
  3. Step 3: Cross multiply
    386,610x = 533,522.76 × 225,575.76
  4. Step 4: Simplify right side
    386,610x = 120,349,802,064.30
  5. Step 5: Solve for x
    x = 120,349,802,064.30/386,610
  6. Step 6: Final answer
    x = 311,295.11

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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.