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Finding the Fourth Proportional to 298,869.90, 448,596.45 and 149,279.10

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Solution

The fourth proportional to 298,869.90, 448,596.45 and 149,279.10 is: 224,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,869.90 : 448,596.45 = 149,279.10 : x
  2. Step 2: Convert to fraction form
    298,869.90/448,596.45 = 149,279.10/x
  3. Step 3: Cross multiply
    298,869.90x = 448,596.45 × 149,279.10
  4. Step 4: Simplify right side
    298,869.90x = 66,966,074,319.20
  5. Step 5: Solve for x
    x = 66,966,074,319.20/298,869.90
  6. Step 6: Final answer
    x = 224,064.30

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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.