Home / 253,527.20-380,266.02-66,538.70

Finding the Fourth Proportional to 253,527.20, 380,266.02 and 66,538.70

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Solution

The fourth proportional to 253,527.20, 380,266.02 and 66,538.70 is: 99,801.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,527.20 : 380,266.02 = 66,538.70 : x
  2. Step 2: Convert to fraction form
    253,527.20/380,266.02 = 66,538.70/x
  3. Step 3: Cross multiply
    253,527.20x = 380,266.02 × 66,538.70
  4. Step 4: Simplify right side
    253,527.20x = 25,302,406,624.97
  5. Step 5: Solve for x
    x = 25,302,406,624.97/253,527.20
  6. Step 6: Final answer
    x = 99,801.55

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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.