Home / 279,022.08-385,042.56-151,694.72

Finding the Fourth Proportional to 279,022.08, 385,042.56 and 151,694.72

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Solution

The fourth proportional to 279,022.08, 385,042.56 and 151,694.72 is: 209,334.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,022.08 : 385,042.56 = 151,694.72 : x
  2. Step 2: Convert to fraction form
    279,022.08/385,042.56 = 151,694.72/x
  3. Step 3: Cross multiply
    279,022.08x = 385,042.56 × 151,694.72
  4. Step 4: Simplify right side
    279,022.08x = 58,408,923,327.28
  5. Step 5: Solve for x
    x = 58,408,923,327.28/279,022.08
  6. Step 6: Final answer
    x = 209,334.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.