Home / 218,441.22-327,740.72-76,307.49

Finding the Fourth Proportional to 218,441.22, 327,740.72 and 76,307.49

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Solution

The fourth proportional to 218,441.22, 327,740.72 and 76,307.49 is: 114,488.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,441.22 : 327,740.72 = 76,307.49 : x
  2. Step 2: Convert to fraction form
    218,441.22/327,740.72 = 76,307.49/x
  3. Step 3: Cross multiply
    218,441.22x = 327,740.72 × 76,307.49
  4. Step 4: Simplify right side
    218,441.22x = 25,009,071,332.46
  5. Step 5: Solve for x
    x = 25,009,071,332.46/218,441.22
  6. Step 6: Final answer
    x = 114,488.79

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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.