Home / 345,627.43-518,253.54-155,865.77

Finding the Fourth Proportional to 345,627.43, 518,253.54 and 155,865.77

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Solution

The fourth proportional to 345,627.43, 518,253.54 and 155,865.77 is: 233,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,627.43 : 518,253.54 = 155,865.77 : x
  2. Step 2: Convert to fraction form
    345,627.43/518,253.54 = 155,865.77/x
  3. Step 3: Cross multiply
    345,627.43x = 518,253.54 × 155,865.77
  4. Step 4: Simplify right side
    345,627.43x = 80,777,987,067.33
  5. Step 5: Solve for x
    x = 80,777,987,067.33/345,627.43
  6. Step 6: Final answer
    x = 233,714.05

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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.