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Finding the Fourth Proportional to 344,856.80, 517,301.40 and 108,207.20

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Solution

The fourth proportional to 344,856.80, 517,301.40 and 108,207.20 is: 162,315.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,856.80 : 517,301.40 = 108,207.20 : x
  2. Step 2: Convert to fraction form
    344,856.80/517,301.40 = 108,207.20/x
  3. Step 3: Cross multiply
    344,856.80x = 517,301.40 × 108,207.20
  4. Step 4: Simplify right side
    344,856.80x = 55,975,736,050.08
  5. Step 5: Solve for x
    x = 55,975,736,050.08/344,856.80
  6. Step 6: Final answer
    x = 162,315.88

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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.