Home / 218,179.50-301,089.51-122,685.36

Finding the Fourth Proportional to 218,179.50, 301,089.51 and 122,685.36

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Solution

The fourth proportional to 218,179.50, 301,089.51 and 122,685.36 is: 169,306.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,179.50 : 301,089.51 = 122,685.36 : x
  2. Step 2: Convert to fraction form
    218,179.50/301,089.51 = 122,685.36/x
  3. Step 3: Cross multiply
    218,179.50x = 301,089.51 × 122,685.36
  4. Step 4: Simplify right side
    218,179.50x = 36,939,274,926.57
  5. Step 5: Solve for x
    x = 36,939,274,926.57/218,179.50
  6. Step 6: Final answer
    x = 169,306.81

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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.