Home / 213,540.10-320,332.02-73,280.50

Finding the Fourth Proportional to 213,540.10, 320,332.02 and 73,280.50

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Solution

The fourth proportional to 213,540.10, 320,332.02 and 73,280.50 is: 109,928.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,540.10 : 320,332.02 = 73,280.50 : x
  2. Step 2: Convert to fraction form
    213,540.10/320,332.02 = 73,280.50/x
  3. Step 3: Cross multiply
    213,540.10x = 320,332.02 × 73,280.50
  4. Step 4: Simplify right side
    213,540.10x = 23,474,090,591.61
  5. Step 5: Solve for x
    x = 23,474,090,591.61/213,540.10
  6. Step 6: Final answer
    x = 109,928.26

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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.