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Finding the Fourth Proportional to 162,305.52, 243,469.28 and 49,978.80

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Solution

The fourth proportional to 162,305.52, 243,469.28 and 49,978.80 is: 74,971.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,305.52 : 243,469.28 = 49,978.80 : x
  2. Step 2: Convert to fraction form
    162,305.52/243,469.28 = 49,978.80/x
  3. Step 3: Cross multiply
    162,305.52x = 243,469.28 × 49,978.80
  4. Step 4: Simplify right side
    162,305.52x = 12,168,302,451.26
  5. Step 5: Solve for x
    x = 12,168,302,451.26/162,305.52
  6. Step 6: Final answer
    x = 74,971.59

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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.