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Finding the Fourth Proportional to 298,308.12, 447,458.12 and 108,810.24

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Solution

The fourth proportional to 298,308.12, 447,458.12 and 108,810.24 is: 163,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,308.12 : 447,458.12 = 108,810.24 : x
  2. Step 2: Convert to fraction form
    298,308.12/447,458.12 = 108,810.24/x
  3. Step 3: Cross multiply
    298,308.12x = 447,458.12 × 108,810.24
  4. Step 4: Simplify right side
    298,308.12x = 48,688,025,427.15
  5. Step 5: Solve for x
    x = 48,688,025,427.15/298,308.12
  6. Step 6: Final answer
    x = 163,213.88

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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.