Home / 218,715.24-328,072.84-125,154.84

Finding the Fourth Proportional to 218,715.24, 328,072.84 and 125,154.84

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Solution

The fourth proportional to 218,715.24, 328,072.84 and 125,154.84 is: 187,732.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,715.24 : 328,072.84 = 125,154.84 : x
  2. Step 2: Convert to fraction form
    218,715.24/328,072.84 = 125,154.84/x
  3. Step 3: Cross multiply
    218,715.24x = 328,072.84 × 125,154.84
  4. Step 4: Simplify right side
    218,715.24x = 41,059,903,798.55
  5. Step 5: Solve for x
    x = 41,059,903,798.55/218,715.24
  6. Step 6: Final answer
    x = 187,732.25

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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.