Home / 286,621.74-395,535.12-159,294.78

Finding the Fourth Proportional to 286,621.74, 395,535.12 and 159,294.78

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Solution

The fourth proportional to 286,621.74, 395,535.12 and 159,294.78 is: 219,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,621.74 : 395,535.12 = 159,294.78 : x
  2. Step 2: Convert to fraction form
    286,621.74/395,535.12 = 159,294.78/x
  3. Step 3: Cross multiply
    286,621.74x = 395,535.12 × 159,294.78
  4. Step 4: Simplify right side
    286,621.74x = 63,006,679,922.67
  5. Step 5: Solve for x
    x = 63,006,679,922.67/286,621.74
  6. Step 6: Final answer
    x = 219,825.20

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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.