Home / 439,630.20-659,618.10-173,345.40

Finding the Fourth Proportional to 439,630.20, 659,618.10 and 173,345.40

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Solution

The fourth proportional to 439,630.20, 659,618.10 and 173,345.40 is: 260,086.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,630.20 : 659,618.10 = 173,345.40 : x
  2. Step 2: Convert to fraction form
    439,630.20/659,618.10 = 173,345.40/x
  3. Step 3: Cross multiply
    439,630.20x = 659,618.10 × 173,345.40
  4. Step 4: Simplify right side
    439,630.20x = 114,341,763,391.74
  5. Step 5: Solve for x
    x = 114,341,763,391.74/439,630.20
  6. Step 6: Final answer
    x = 260,086.23

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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.