Home / 439,768.75-659,620-140,237.23

Finding the Fourth Proportional to 439,768.75, 659,620 and 140,237.23

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Solution

The fourth proportional to 439,768.75, 659,620 and 140,237.23 is: 210,345.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,768.75 : 659,620 = 140,237.23 : x
  2. Step 2: Convert to fraction form
    439,768.75/659,620 = 140,237.23/x
  3. Step 3: Cross multiply
    439,768.75x = 659,620 × 140,237.23
  4. Step 4: Simplify right side
    439,768.75x = 92,503,281,652.60
  5. Step 5: Solve for x
    x = 92,503,281,652.60/439,768.75
  6. Step 6: Final answer
    x = 210,345.28

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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.