Home / 287,094.92-395,780.40-201,947.72

Finding the Fourth Proportional to 287,094.92, 395,780.40 and 201,947.72

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Solution

The fourth proportional to 287,094.92, 395,780.40 and 201,947.72 is: 278,399.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,094.92 : 395,780.40 = 201,947.72 : x
  2. Step 2: Convert to fraction form
    287,094.92/395,780.40 = 201,947.72/x
  3. Step 3: Cross multiply
    287,094.92x = 395,780.40 × 201,947.72
  4. Step 4: Simplify right side
    287,094.92x = 79,926,949,400.69
  5. Step 5: Solve for x
    x = 79,926,949,400.69/287,094.92
  6. Step 6: Final answer
    x = 278,399.04

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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.