Home / 286,389.60-395,215.20-159,064.80

Finding the Fourth Proportional to 286,389.60, 395,215.20 and 159,064.80

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Solution

The fourth proportional to 286,389.60, 395,215.20 and 159,064.80 is: 219,508.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,389.60 : 395,215.20 = 159,064.80 : x
  2. Step 2: Convert to fraction form
    286,389.60/395,215.20 = 159,064.80/x
  3. Step 3: Cross multiply
    286,389.60x = 395,215.20 × 159,064.80
  4. Step 4: Simplify right side
    286,389.60x = 62,864,826,744.96
  5. Step 5: Solve for x
    x = 62,864,826,744.96/286,389.60
  6. Step 6: Final answer
    x = 219,508.06

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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.