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Finding the Fourth Proportional to 243,715.60, 336,219.24 and 158,813.20

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Solution

The fourth proportional to 243,715.60, 336,219.24 and 158,813.20 is: 219,091.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,715.60 : 336,219.24 = 158,813.20 : x
  2. Step 2: Convert to fraction form
    243,715.60/336,219.24 = 158,813.20/x
  3. Step 3: Cross multiply
    243,715.60x = 336,219.24 × 158,813.20
  4. Step 4: Simplify right side
    243,715.60x = 53,396,053,405.97
  5. Step 5: Solve for x
    x = 53,396,053,405.97/243,715.60
  6. Step 6: Final answer
    x = 219,091.65

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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.