Home / 319,844.12-479,763.72-130,259.88

Finding the Fourth Proportional to 319,844.12, 479,763.72 and 130,259.88

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Solution

The fourth proportional to 319,844.12, 479,763.72 and 130,259.88 is: 195,388.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,844.12 : 479,763.72 = 130,259.88 : x
  2. Step 2: Convert to fraction form
    319,844.12/479,763.72 = 130,259.88/x
  3. Step 3: Cross multiply
    319,844.12x = 479,763.72 × 130,259.88
  4. Step 4: Simplify right side
    319,844.12x = 62,493,964,595.55
  5. Step 5: Solve for x
    x = 62,493,964,595.55/319,844.12
  6. Step 6: Final answer
    x = 195,388.82

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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.