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Finding the Fourth Proportional to 251,157, 346,596.81 and 137,987.04

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Solution

The fourth proportional to 251,157, 346,596.81 and 137,987.04 is: 190,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,157 : 346,596.81 = 137,987.04 : x
  2. Step 2: Convert to fraction form
    251,157/346,596.81 = 137,987.04/x
  3. Step 3: Cross multiply
    251,157x = 346,596.81 × 137,987.04
  4. Step 4: Simplify right side
    251,157x = 47,825,867,885.34
  5. Step 5: Solve for x
    x = 47,825,867,885.34/251,157
  6. Step 6: Final answer
    x = 190,422.20

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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.