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Finding the Fourth Proportional to 162,815.40, 244,223.10 and 57,620.70

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Solution

The fourth proportional to 162,815.40, 244,223.10 and 57,620.70 is: 86,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,815.40 : 244,223.10 = 57,620.70 : x
  2. Step 2: Convert to fraction form
    162,815.40/244,223.10 = 57,620.70/x
  3. Step 3: Cross multiply
    162,815.40x = 244,223.10 × 57,620.70
  4. Step 4: Simplify right side
    162,815.40x = 14,072,305,978.17
  5. Step 5: Solve for x
    x = 14,072,305,978.17/162,815.40
  6. Step 6: Final answer
    x = 86,431.05

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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.