Home / 426,203.20-639,074.40-176,910.40

Finding the Fourth Proportional to 426,203.20, 639,074.40 and 176,910.40

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Solution

The fourth proportional to 426,203.20, 639,074.40 and 176,910.40 is: 265,269.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,203.20 : 639,074.40 = 176,910.40 : x
  2. Step 2: Convert to fraction form
    426,203.20/639,074.40 = 176,910.40/x
  3. Step 3: Cross multiply
    426,203.20x = 639,074.40 × 176,910.40
  4. Step 4: Simplify right side
    426,203.20x = 113,058,907,733.76
  5. Step 5: Solve for x
    x = 113,058,907,733.76/426,203.20
  6. Step 6: Final answer
    x = 265,269.96

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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.