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Finding the Fourth Proportional to 298,971.20, 448,302.90 and 88,581.80

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Solution

The fourth proportional to 298,971.20, 448,302.90 and 88,581.80 is: 132,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,971.20 : 448,302.90 = 88,581.80 : x
  2. Step 2: Convert to fraction form
    298,971.20/448,302.90 = 88,581.80/x
  3. Step 3: Cross multiply
    298,971.20x = 448,302.90 × 88,581.80
  4. Step 4: Simplify right side
    298,971.20x = 39,711,477,827.22
  5. Step 5: Solve for x
    x = 39,711,477,827.22/298,971.20
  6. Step 6: Final answer
    x = 132,827.10

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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.