Home / 313,972.20-470,947.80-136,479.24

Finding the Fourth Proportional to 313,972.20, 470,947.80 and 136,479.24

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Solution

The fourth proportional to 313,972.20, 470,947.80 and 136,479.24 is: 204,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,972.20 : 470,947.80 = 136,479.24 : x
  2. Step 2: Convert to fraction form
    313,972.20/470,947.80 = 136,479.24/x
  3. Step 3: Cross multiply
    313,972.20x = 470,947.80 × 136,479.24
  4. Step 4: Simplify right side
    313,972.20x = 64,274,597,823.67
  5. Step 5: Solve for x
    x = 64,274,597,823.67/313,972.20
  6. Step 6: Final answer
    x = 204,714.30

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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.