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Finding the Fourth Proportional to 248,199.72, 372,040.38 and 121,664.76

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Solution

The fourth proportional to 248,199.72, 372,040.38 and 121,664.76 is: 182,370.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,199.72 : 372,040.38 = 121,664.76 : x
  2. Step 2: Convert to fraction form
    248,199.72/372,040.38 = 121,664.76/x
  3. Step 3: Cross multiply
    248,199.72x = 372,040.38 × 121,664.76
  4. Step 4: Simplify right side
    248,199.72x = 45,264,203,543.01
  5. Step 5: Solve for x
    x = 45,264,203,543.01/248,199.72
  6. Step 6: Final answer
    x = 182,370.08

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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.