Home / 240,138.24-360,207.36-90,412.12

Finding the Fourth Proportional to 240,138.24, 360,207.36 and 90,412.12

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Solution

The fourth proportional to 240,138.24, 360,207.36 and 90,412.12 is: 135,618.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,138.24 : 360,207.36 = 90,412.12 : x
  2. Step 2: Convert to fraction form
    240,138.24/360,207.36 = 90,412.12/x
  3. Step 3: Cross multiply
    240,138.24x = 360,207.36 × 90,412.12
  4. Step 4: Simplify right side
    240,138.24x = 32,567,111,057.20
  5. Step 5: Solve for x
    x = 32,567,111,057.20/240,138.24
  6. Step 6: Final answer
    x = 135,618.18

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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.