Home / 498,209.06-747,438.75-143,223.72

Finding the Fourth Proportional to 498,209.06, 747,438.75 and 143,223.72

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Solution

The fourth proportional to 498,209.06, 747,438.75 and 143,223.72 is: 214,871.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,209.06 : 747,438.75 = 143,223.72 : x
  2. Step 2: Convert to fraction form
    498,209.06/747,438.75 = 143,223.72/x
  3. Step 3: Cross multiply
    498,209.06x = 747,438.75 × 143,223.72
  4. Step 4: Simplify right side
    498,209.06x = 107,050,958,247.15
  5. Step 5: Solve for x
    x = 107,050,958,247.15/498,209.06
  6. Step 6: Final answer
    x = 214,871.56

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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.