Home / 498,205.06-747,432.75-143,219.72

Finding the Fourth Proportional to 498,205.06, 747,432.75 and 143,219.72

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Solution

The fourth proportional to 498,205.06, 747,432.75 and 143,219.72 is: 214,865.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,205.06 : 747,432.75 = 143,219.72 : x
  2. Step 2: Convert to fraction form
    498,205.06/747,432.75 = 143,219.72/x
  3. Step 3: Cross multiply
    498,205.06x = 747,432.75 × 143,219.72
  4. Step 4: Simplify right side
    498,205.06x = 107,047,109,173.83
  5. Step 5: Solve for x
    x = 107,047,109,173.83/498,205.06
  6. Step 6: Final answer
    x = 214,865.56

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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.