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Finding the Fourth Proportional to 209,368.92, 288,930.46 and 113,876.28

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Solution

The fourth proportional to 209,368.92, 288,930.46 and 113,876.28 is: 157,150.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,368.92 : 288,930.46 = 113,876.28 : x
  2. Step 2: Convert to fraction form
    209,368.92/288,930.46 = 113,876.28/x
  3. Step 3: Cross multiply
    209,368.92x = 288,930.46 × 113,876.28
  4. Step 4: Simplify right side
    209,368.92x = 32,902,325,963.49
  5. Step 5: Solve for x
    x = 32,902,325,963.49/209,368.92
  6. Step 6: Final answer
    x = 157,150.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.