Home / 287,174.24-430,761.60-90,182.24

Finding the Fourth Proportional to 287,174.24, 430,761.60 and 90,182.24

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Solution

The fourth proportional to 287,174.24, 430,761.60 and 90,182.24 is: 135,273.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,174.24 : 430,761.60 = 90,182.24 : x
  2. Step 2: Convert to fraction form
    287,174.24/430,761.60 = 90,182.24/x
  3. Step 3: Cross multiply
    287,174.24x = 430,761.60 × 90,182.24
  4. Step 4: Simplify right side
    287,174.24x = 38,847,045,993.98
  5. Step 5: Solve for x
    x = 38,847,045,993.98/287,174.24
  6. Step 6: Final answer
    x = 135,273.44

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1.5x scale

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.