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Finding the Fourth Proportional to 240,216.40, 360,022.20 and 121,920.40

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Solution

The fourth proportional to 240,216.40, 360,022.20 and 121,920.40 is: 182,727.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,216.40 : 360,022.20 = 121,920.40 : x
  2. Step 2: Convert to fraction form
    240,216.40/360,022.20 = 121,920.40/x
  3. Step 3: Cross multiply
    240,216.40x = 360,022.20 × 121,920.40
  4. Step 4: Simplify right side
    240,216.40x = 43,894,050,632.88
  5. Step 5: Solve for x
    x = 43,894,050,632.88/240,216.40
  6. Step 6: Final answer
    x = 182,727.12

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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.