Home / 475,975.20-656,840.16-261,116.88

Finding the Fourth Proportional to 475,975.20, 656,840.16 and 261,116.88

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Solution

The fourth proportional to 475,975.20, 656,840.16 and 261,116.88 is: 360,338.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,975.20 : 656,840.16 = 261,116.88 : x
  2. Step 2: Convert to fraction form
    475,975.20/656,840.16 = 261,116.88/x
  3. Step 3: Cross multiply
    475,975.20x = 656,840.16 × 261,116.88
  4. Step 4: Simplify right side
    475,975.20x = 171,512,053,237.90
  5. Step 5: Solve for x
    x = 171,512,053,237.90/475,975.20
  6. Step 6: Final answer
    x = 360,338.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.