Home / 315,099.20-471,637.20-165,125.60

Finding the Fourth Proportional to 315,099.20, 471,637.20 and 165,125.60

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Solution

The fourth proportional to 315,099.20, 471,637.20 and 165,125.60 is: 247,158.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,099.20 : 471,637.20 = 165,125.60 : x
  2. Step 2: Convert to fraction form
    315,099.20/471,637.20 = 165,125.60/x
  3. Step 3: Cross multiply
    315,099.20x = 471,637.20 × 165,125.60
  4. Step 4: Simplify right side
    315,099.20x = 77,879,375,632.32
  5. Step 5: Solve for x
    x = 77,879,375,632.32/315,099.20
  6. Step 6: Final answer
    x = 247,158.28

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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.