Home / 439,762.20-659,643.30-140,240.40

Finding the Fourth Proportional to 439,762.20, 659,643.30 and 140,240.40

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Solution

The fourth proportional to 439,762.20, 659,643.30 and 140,240.40 is: 210,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,762.20 : 659,643.30 = 140,240.40 : x
  2. Step 2: Convert to fraction form
    439,762.20/659,643.30 = 140,240.40/x
  3. Step 3: Cross multiply
    439,762.20x = 659,643.30 × 140,240.40
  4. Step 4: Simplify right side
    439,762.20x = 92,508,640,249.32
  5. Step 5: Solve for x
    x = 92,508,640,249.32/439,762.20
  6. Step 6: Final answer
    x = 210,360.60

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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.