Home / 439,645.20-659,640.60-173,360.40

Finding the Fourth Proportional to 439,645.20, 659,640.60 and 173,360.40

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Solution

The fourth proportional to 439,645.20, 659,640.60 and 173,360.40 is: 260,108.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,645.20 : 659,640.60 = 173,360.40 : x
  2. Step 2: Convert to fraction form
    439,645.20/659,640.60 = 173,360.40/x
  3. Step 3: Cross multiply
    439,645.20x = 659,640.60 × 173,360.40
  4. Step 4: Simplify right side
    439,645.20x = 114,355,558,272.24
  5. Step 5: Solve for x
    x = 114,355,558,272.24/439,645.20
  6. Step 6: Final answer
    x = 260,108.74

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1.5x scale

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.