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Finding the Fourth Proportional to 248,612.60, 372,918.90 and 154,134.20

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Solution

The fourth proportional to 248,612.60, 372,918.90 and 154,134.20 is: 231,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,612.60 : 372,918.90 = 154,134.20 : x
  2. Step 2: Convert to fraction form
    248,612.60/372,918.90 = 154,134.20/x
  3. Step 3: Cross multiply
    248,612.60x = 372,918.90 × 154,134.20
  4. Step 4: Simplify right side
    248,612.60x = 57,479,556,316.38
  5. Step 5: Solve for x
    x = 57,479,556,316.38/248,612.60
  6. Step 6: Final answer
    x = 231,201.30

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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.