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Finding the Fourth Proportional to 438,855.32, 658,335.74 and 154,486.82

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Solution

The fourth proportional to 438,855.32, 658,335.74 and 154,486.82 is: 231,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,855.32 : 658,335.74 = 154,486.82 : x
  2. Step 2: Convert to fraction form
    438,855.32/658,335.74 = 154,486.82/x
  3. Step 3: Cross multiply
    438,855.32x = 658,335.74 × 154,486.82
  4. Step 4: Simplify right side
    438,855.32x = 101,704,195,838.35
  5. Step 5: Solve for x
    x = 101,704,195,838.35/438,855.32
  6. Step 6: Final answer
    x = 231,748.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.