Home / 218,320.90-301,261.39-122,825.55

Finding the Fourth Proportional to 218,320.90, 301,261.39 and 122,825.55

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Solution

The fourth proportional to 218,320.90, 301,261.39 and 122,825.55 is: 169,487.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,320.90 : 301,261.39 = 122,825.55 : x
  2. Step 2: Convert to fraction form
    218,320.90/301,261.39 = 122,825.55/x
  3. Step 3: Cross multiply
    218,320.90x = 301,261.39 × 122,825.55
  4. Step 4: Simplify right side
    218,320.90x = 37,002,595,920.51
  5. Step 5: Solve for x
    x = 37,002,595,920.51/218,320.90
  6. Step 6: Final answer
    x = 169,487.19

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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.