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Finding the Fourth Proportional to 162,563.40, 243,845.10 and 136,319.40

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Solution

The fourth proportional to 162,563.40, 243,845.10 and 136,319.40 is: 204,479.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,563.40 : 243,845.10 = 136,319.40 : x
  2. Step 2: Convert to fraction form
    162,563.40/243,845.10 = 136,319.40/x
  3. Step 3: Cross multiply
    162,563.40x = 243,845.10 × 136,319.40
  4. Step 4: Simplify right side
    162,563.40x = 33,240,817,724.94
  5. Step 5: Solve for x
    x = 33,240,817,724.94/162,563.40
  6. Step 6: Final answer
    x = 204,479.10

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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.