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Finding the Fourth Proportional to 152,383.80, 228,057.30 and 133,721.40

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Solution

The fourth proportional to 152,383.80, 228,057.30 and 133,721.40 is: 200,127.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,383.80 : 228,057.30 = 133,721.40 : x
  2. Step 2: Convert to fraction form
    152,383.80/228,057.30 = 133,721.40/x
  3. Step 3: Cross multiply
    152,383.80x = 228,057.30 × 133,721.40
  4. Step 4: Simplify right side
    152,383.80x = 30,496,141,436.22
  5. Step 5: Solve for x
    x = 30,496,141,436.22/152,383.80
  6. Step 6: Final answer
    x = 200,127.19

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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.