Home / 287,288.87-430,962.46-109,945.04

Finding the Fourth Proportional to 287,288.87, 430,962.46 and 109,945.04

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Solution

The fourth proportional to 287,288.87, 430,962.46 and 109,945.04 is: 164,928.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,288.87 : 430,962.46 = 109,945.04 : x
  2. Step 2: Convert to fraction form
    287,288.87/430,962.46 = 109,945.04/x
  3. Step 3: Cross multiply
    287,288.87x = 430,962.46 × 109,945.04
  4. Step 4: Simplify right side
    287,288.87x = 47,382,182,473.52
  5. Step 5: Solve for x
    x = 47,382,182,473.52/287,288.87
  6. Step 6: Final answer
    x = 164,928.71

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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.