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Finding the Fourth Proportional to 251,065.72, 346,326.06 and 150,405.40

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Solution

The fourth proportional to 251,065.72, 346,326.06 and 150,405.40 is: 207,472.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,065.72 : 346,326.06 = 150,405.40 : x
  2. Step 2: Convert to fraction form
    251,065.72/346,326.06 = 150,405.40/x
  3. Step 3: Cross multiply
    251,065.72x = 346,326.06 × 150,405.40
  4. Step 4: Simplify right side
    251,065.72x = 52,089,309,584.72
  5. Step 5: Solve for x
    x = 52,089,309,584.72/251,065.72
  6. Step 6: Final answer
    x = 207,472.81

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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.