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Finding the Fourth Proportional to 151,587.88, 209,068 and 133,399.36

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Solution

The fourth proportional to 151,587.88, 209,068 and 133,399.36 is: 183,982.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,587.88 : 209,068 = 133,399.36 : x
  2. Step 2: Convert to fraction form
    151,587.88/209,068 = 133,399.36/x
  3. Step 3: Cross multiply
    151,587.88x = 209,068 × 133,399.36
  4. Step 4: Simplify right side
    151,587.88x = 27,889,537,396.48
  5. Step 5: Solve for x
    x = 27,889,537,396.48/151,587.88
  6. Step 6: Final answer
    x = 183,982.63

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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.