Home / 515,433.30-772,964.70-178,382.52

Finding the Fourth Proportional to 515,433.30, 772,964.70 and 178,382.52

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Solution

The fourth proportional to 515,433.30, 772,964.70 and 178,382.52 is: 267,509.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,433.30 : 772,964.70 = 178,382.52 : x
  2. Step 2: Convert to fraction form
    515,433.30/772,964.70 = 178,382.52/x
  3. Step 3: Cross multiply
    515,433.30x = 772,964.70 × 178,382.52
  4. Step 4: Simplify right side
    515,433.30x = 137,883,391,057.04
  5. Step 5: Solve for x
    x = 137,883,391,057.04/515,433.30
  6. Step 6: Final answer
    x = 267,509.67

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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.