Home / 286,989.28-396,050.52-159,676.72

Finding the Fourth Proportional to 286,989.28, 396,050.52 and 159,676.72

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Solution

The fourth proportional to 286,989.28, 396,050.52 and 159,676.72 is: 220,356.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,989.28 : 396,050.52 = 159,676.72 : x
  2. Step 2: Convert to fraction form
    286,989.28/396,050.52 = 159,676.72/x
  3. Step 3: Cross multiply
    286,989.28x = 396,050.52 × 159,676.72
  4. Step 4: Simplify right side
    286,989.28x = 63,240,047,987.89
  5. Step 5: Solve for x
    x = 63,240,047,987.89/286,989.28
  6. Step 6: Final answer
    x = 220,356.83

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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.