Home / 314,810.20-472,215.30-181,621.90

Finding the Fourth Proportional to 314,810.20, 472,215.30 and 181,621.90

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Solution

The fourth proportional to 314,810.20, 472,215.30 and 181,621.90 is: 272,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,810.20 : 472,215.30 = 181,621.90 : x
  2. Step 2: Convert to fraction form
    314,810.20/472,215.30 = 181,621.90/x
  3. Step 3: Cross multiply
    314,810.20x = 472,215.30 × 181,621.90
  4. Step 4: Simplify right side
    314,810.20x = 85,764,639,995.07
  5. Step 5: Solve for x
    x = 85,764,639,995.07/314,810.20
  6. Step 6: Final answer
    x = 272,432.85

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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.