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Finding the Fourth Proportional to 272,974.79, 376,706.70 and 158,321.39

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Solution

The fourth proportional to 272,974.79, 376,706.70 and 158,321.39 is: 218,484.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,974.79 : 376,706.70 = 158,321.39 : x
  2. Step 2: Convert to fraction form
    272,974.79/376,706.70 = 158,321.39/x
  3. Step 3: Cross multiply
    272,974.79x = 376,706.70 × 158,321.39
  4. Step 4: Simplify right side
    272,974.79x = 59,640,726,482.78
  5. Step 5: Solve for x
    x = 59,640,726,482.78/272,974.79
  6. Step 6: Final answer
    x = 218,484.37

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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.