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Finding the Fourth Proportional to 298,970.70, 448,302.15 and 88,581.30

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Solution

The fourth proportional to 298,970.70, 448,302.15 and 88,581.30 is: 132,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,970.70 : 448,302.15 = 88,581.30 : x
  2. Step 2: Convert to fraction form
    298,970.70/448,302.15 = 88,581.30/x
  3. Step 3: Cross multiply
    298,970.70x = 448,302.15 × 88,581.30
  4. Step 4: Simplify right side
    298,970.70x = 39,711,187,239.80
  5. Step 5: Solve for x
    x = 39,711,187,239.80/298,970.70
  6. Step 6: Final answer
    x = 132,826.35

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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.