Home / 379,849.12-569,563.31-155,367.20

Finding the Fourth Proportional to 379,849.12, 569,563.31 and 155,367.20

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Solution

The fourth proportional to 379,849.12, 569,563.31 and 155,367.20 is: 232,964.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,849.12 : 569,563.31 = 155,367.20 : x
  2. Step 2: Convert to fraction form
    379,849.12/569,563.31 = 155,367.20/x
  3. Step 3: Cross multiply
    379,849.12x = 569,563.31 × 155,367.20
  4. Step 4: Simplify right side
    379,849.12x = 88,491,458,509.76
  5. Step 5: Solve for x
    x = 88,491,458,509.76/379,849.12
  6. Step 6: Final answer
    x = 232,964.76

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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.