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Finding the Fourth Proportional to 173,999.20, 243,074 and 173,999.20

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Solution

The fourth proportional to 173,999.20, 243,074 and 173,999.20 is: 243,074

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,999.20 : 243,074 = 173,999.20 : x
  2. Step 2: Convert to fraction form
    173,999.20/243,074 = 173,999.20/x
  3. Step 3: Cross multiply
    173,999.20x = 243,074 × 173,999.20
  4. Step 4: Simplify right side
    173,999.20x = 42,294,681,540.80
  5. Step 5: Solve for x
    x = 42,294,681,540.80/173,999.20
  6. Step 6: Final answer
    x = 243,074

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.