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Finding the Fourth Proportional to 489,242.12, 675,088.88 and 271,447.29

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Solution

The fourth proportional to 489,242.12, 675,088.88 and 271,447.29 is: 374,561.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,242.12 : 675,088.88 = 271,447.29 : x
  2. Step 2: Convert to fraction form
    489,242.12/675,088.88 = 271,447.29/x
  3. Step 3: Cross multiply
    489,242.12x = 675,088.88 × 271,447.29
  4. Step 4: Simplify right side
    489,242.12x = 183,251,045,627.90
  5. Step 5: Solve for x
    x = 183,251,045,627.90/489,242.12
  6. Step 6: Final answer
    x = 374,561.06

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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.