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Finding the Fourth Proportional to 297,869.80, 446,718.30 and 108,308.20

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Solution

The fourth proportional to 297,869.80, 446,718.30 and 108,308.20 is: 162,430.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,869.80 : 446,718.30 = 108,308.20 : x
  2. Step 2: Convert to fraction form
    297,869.80/446,718.30 = 108,308.20/x
  3. Step 3: Cross multiply
    297,869.80x = 446,718.30 × 108,308.20
  4. Step 4: Simplify right side
    297,869.80x = 48,383,254,980.06
  5. Step 5: Solve for x
    x = 48,383,254,980.06/297,869.80
  6. Step 6: Final answer
    x = 162,430.88

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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.