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Finding the Fourth Proportional to 299,010.79, 448,590 and 88,648.72

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Solution

The fourth proportional to 299,010.79, 448,590 and 88,648.72 is: 132,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,010.79 : 448,590 = 88,648.72 : x
  2. Step 2: Convert to fraction form
    299,010.79/448,590 = 88,648.72/x
  3. Step 3: Cross multiply
    299,010.79x = 448,590 × 88,648.72
  4. Step 4: Simplify right side
    299,010.79x = 39,766,929,304.80
  5. Step 5: Solve for x
    x = 39,766,929,304.80/299,010.79
  6. Step 6: Final answer
    x = 132,994.96

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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.