Home / 217,455.28-300,084.60-121,959.92

Finding the Fourth Proportional to 217,455.28, 300,084.60 and 121,959.92

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Solution

The fourth proportional to 217,455.28, 300,084.60 and 121,959.92 is: 168,302.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,455.28 : 300,084.60 = 121,959.92 : x
  2. Step 2: Convert to fraction form
    217,455.28/300,084.60 = 121,959.92/x
  3. Step 3: Cross multiply
    217,455.28x = 300,084.60 × 121,959.92
  4. Step 4: Simplify right side
    217,455.28x = 36,598,293,809.23
  5. Step 5: Solve for x
    x = 36,598,293,809.23/217,455.28
  6. Step 6: Final answer
    x = 168,302.62

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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.