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Finding the Fourth Proportional to 326,820.10, 490,230.15 and 149,673.10

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Solution

The fourth proportional to 326,820.10, 490,230.15 and 149,673.10 is: 224,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,820.10 : 490,230.15 = 149,673.10 : x
  2. Step 2: Convert to fraction form
    326,820.10/490,230.15 = 149,673.10/x
  3. Step 3: Cross multiply
    326,820.10x = 490,230.15 × 149,673.10
  4. Step 4: Simplify right side
    326,820.10x = 73,374,266,263.97
  5. Step 5: Solve for x
    x = 73,374,266,263.97/326,820.10
  6. Step 6: Final answer
    x = 224,509.65

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Similar ratio
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1.5x scale

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.