Home / 314,723.70-472,282.38-127,735.20

Finding the Fourth Proportional to 314,723.70, 472,282.38 and 127,735.20

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Solution

The fourth proportional to 314,723.70, 472,282.38 and 127,735.20 is: 191,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,723.70 : 472,282.38 = 127,735.20 : x
  2. Step 2: Convert to fraction form
    314,723.70/472,282.38 = 127,735.20/x
  3. Step 3: Cross multiply
    314,723.70x = 472,282.38 × 127,735.20
  4. Step 4: Simplify right side
    314,723.70x = 60,327,084,265.78
  5. Step 5: Solve for x
    x = 60,327,084,265.78/314,723.70
  6. Step 6: Final answer
    x = 191,682.69

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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.