Home / 426,205.20-639,077.40-176,912.40

Finding the Fourth Proportional to 426,205.20, 639,077.40 and 176,912.40

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Solution

The fourth proportional to 426,205.20, 639,077.40 and 176,912.40 is: 265,272.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,205.20 : 639,077.40 = 176,912.40 : x
  2. Step 2: Convert to fraction form
    426,205.20/639,077.40 = 176,912.40/x
  3. Step 3: Cross multiply
    426,205.20x = 639,077.40 × 176,912.40
  4. Step 4: Simplify right side
    426,205.20x = 113,060,716,619.76
  5. Step 5: Solve for x
    x = 113,060,716,619.76/426,205.20
  6. Step 6: Final answer
    x = 265,272.96

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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.