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Finding the Fourth Proportional to 172,271.88, 258,446.82 and 59,957.40

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Solution

The fourth proportional to 172,271.88, 258,446.82 and 59,957.40 is: 89,949.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,271.88 : 258,446.82 = 59,957.40 : x
  2. Step 2: Convert to fraction form
    172,271.88/258,446.82 = 59,957.40/x
  3. Step 3: Cross multiply
    172,271.88x = 258,446.82 × 59,957.40
  4. Step 4: Simplify right side
    172,271.88x = 15,495,799,365.47
  5. Step 5: Solve for x
    x = 15,495,799,365.47/172,271.88
  6. Step 6: Final answer
    x = 89,949.67

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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.