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Finding the Fourth Proportional to 183,422.40, 253,015.41 and 115,331.46

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Solution

The fourth proportional to 183,422.40, 253,015.41 and 115,331.46 is: 159,089.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,422.40 : 253,015.41 = 115,331.46 : x
  2. Step 2: Convert to fraction form
    183,422.40/253,015.41 = 115,331.46/x
  3. Step 3: Cross multiply
    183,422.40x = 253,015.41 × 115,331.46
  4. Step 4: Simplify right side
    183,422.40x = 29,180,636,637.80
  5. Step 5: Solve for x
    x = 29,180,636,637.80/183,422.40
  6. Step 6: Final answer
    x = 159,089.82

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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.