Home / 279,738.76-386,034.56-152,415.24

Finding the Fourth Proportional to 279,738.76, 386,034.56 and 152,415.24

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Solution

The fourth proportional to 279,738.76, 386,034.56 and 152,415.24 is: 210,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,738.76 : 386,034.56 = 152,415.24 : x
  2. Step 2: Convert to fraction form
    279,738.76/386,034.56 = 152,415.24/x
  3. Step 3: Cross multiply
    279,738.76x = 386,034.56 × 152,415.24
  4. Step 4: Simplify right side
    279,738.76x = 58,837,550,110.69
  5. Step 5: Solve for x
    x = 58,837,550,110.69/279,738.76
  6. Step 6: Final answer
    x = 210,330.35

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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.