Home / 248,279.56-372,420.06-90,507.76

Finding the Fourth Proportional to 248,279.56, 372,420.06 and 90,507.76

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Solution

The fourth proportional to 248,279.56, 372,420.06 and 90,507.76 is: 135,761.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,279.56 : 372,420.06 = 90,507.76 : x
  2. Step 2: Convert to fraction form
    248,279.56/372,420.06 = 90,507.76/x
  3. Step 3: Cross multiply
    248,279.56x = 372,420.06 × 90,507.76
  4. Step 4: Simplify right side
    248,279.56x = 33,706,905,409.67
  5. Step 5: Solve for x
    x = 33,706,905,409.67/248,279.56
  6. Step 6: Final answer
    x = 135,761.90

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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.