Home / 220,617.16-330,816.42-78,441.13

Finding the Fourth Proportional to 220,617.16, 330,816.42 and 78,441.13

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Solution

The fourth proportional to 220,617.16, 330,816.42 and 78,441.13 is: 117,622.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,617.16 : 330,816.42 = 78,441.13 : x
  2. Step 2: Convert to fraction form
    220,617.16/330,816.42 = 78,441.13/x
  3. Step 3: Cross multiply
    220,617.16x = 330,816.42 × 78,441.13
  4. Step 4: Simplify right side
    220,617.16x = 25,949,613,807.35
  5. Step 5: Solve for x
    x = 25,949,613,807.35/220,617.16
  6. Step 6: Final answer
    x = 117,622.83

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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.