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Finding the Fourth Proportional to 323,980.90, 486,117.15 and 113,769.70

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Solution

The fourth proportional to 323,980.90, 486,117.15 and 113,769.70 is: 170,705.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,980.90 : 486,117.15 = 113,769.70 : x
  2. Step 2: Convert to fraction form
    323,980.90/486,117.15 = 113,769.70/x
  3. Step 3: Cross multiply
    323,980.90x = 486,117.15 × 113,769.70
  4. Step 4: Simplify right side
    323,980.90x = 55,305,402,320.36
  5. Step 5: Solve for x
    x = 55,305,402,320.36/323,980.90
  6. Step 6: Final answer
    x = 170,705.75

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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.