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Finding the Fourth Proportional to 248,343.78, 342,714.36 and 135,167.34

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Solution

The fourth proportional to 248,343.78, 342,714.36 and 135,167.34 is: 186,530.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,343.78 : 342,714.36 = 135,167.34 : x
  2. Step 2: Convert to fraction form
    248,343.78/342,714.36 = 135,167.34/x
  3. Step 3: Cross multiply
    248,343.78x = 342,714.36 × 135,167.34
  4. Step 4: Simplify right side
    248,343.78x = 46,323,788,421.00
  5. Step 5: Solve for x
    x = 46,323,788,421.00/248,343.78
  6. Step 6: Final answer
    x = 186,530.90

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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.