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Finding the Fourth Proportional to 240,217.40, 360,023.70 and 121,921.40

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Solution

The fourth proportional to 240,217.40, 360,023.70 and 121,921.40 is: 182,728.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,217.40 : 360,023.70 = 121,921.40 : x
  2. Step 2: Convert to fraction form
    240,217.40/360,023.70 = 121,921.40/x
  3. Step 3: Cross multiply
    240,217.40x = 360,023.70 × 121,921.40
  4. Step 4: Simplify right side
    240,217.40x = 43,894,593,537.18
  5. Step 5: Solve for x
    x = 43,894,593,537.18/240,217.40
  6. Step 6: Final answer
    x = 182,728.62

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1.5x scale

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.