Home / 439,421.20-659,131.80-173,190.40

Finding the Fourth Proportional to 439,421.20, 659,131.80 and 173,190.40

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Solution

The fourth proportional to 439,421.20, 659,131.80 and 173,190.40 is: 259,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,421.20 : 659,131.80 = 173,190.40 : x
  2. Step 2: Convert to fraction form
    439,421.20/659,131.80 = 173,190.40/x
  3. Step 3: Cross multiply
    439,421.20x = 659,131.80 × 173,190.40
  4. Step 4: Simplify right side
    439,421.20x = 114,155,300,094.72
  5. Step 5: Solve for x
    x = 114,155,300,094.72/439,421.20
  6. Step 6: Final answer
    x = 259,785.60

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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.