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Finding the Fourth Proportional to 239,673.14, 330,868.76 and 149,058.30

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Solution

The fourth proportional to 239,673.14, 330,868.76 and 149,058.30 is: 205,774.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,673.14 : 330,868.76 = 149,058.30 : x
  2. Step 2: Convert to fraction form
    239,673.14/330,868.76 = 149,058.30/x
  3. Step 3: Cross multiply
    239,673.14x = 330,868.76 × 149,058.30
  4. Step 4: Simplify right side
    239,673.14x = 49,318,734,888.71
  5. Step 5: Solve for x
    x = 49,318,734,888.71/239,673.14
  6. Step 6: Final answer
    x = 205,774.98

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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.