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Finding the Fourth Proportional to 248,465.40, 372,479.40 and 148,665.30

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Solution

The fourth proportional to 248,465.40, 372,479.40 and 148,665.30 is: 222,867.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,465.40 : 372,479.40 = 148,665.30 : x
  2. Step 2: Convert to fraction form
    248,465.40/372,479.40 = 148,665.30/x
  3. Step 3: Cross multiply
    248,465.40x = 372,479.40 × 148,665.30
  4. Step 4: Simplify right side
    248,465.40x = 55,374,761,744.82
  5. Step 5: Solve for x
    x = 55,374,761,744.82/248,465.40
  6. Step 6: Final answer
    x = 222,867.09

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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.