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Finding the Fourth Proportional to 248,440.56, 342,848.76 and 135,264

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Solution

The fourth proportional to 248,440.56, 342,848.76 and 135,264 is: 186,664.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,440.56 : 342,848.76 = 135,264 : x
  2. Step 2: Convert to fraction form
    248,440.56/342,848.76 = 135,264/x
  3. Step 3: Cross multiply
    248,440.56x = 342,848.76 × 135,264
  4. Step 4: Simplify right side
    248,440.56x = 46,375,094,672.64
  5. Step 5: Solve for x
    x = 46,375,094,672.64/248,440.56
  6. Step 6: Final answer
    x = 186,664.75

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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.