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Finding the Fourth Proportional to 273,442.80, 377,430.25 and 158,747.21

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Solution

The fourth proportional to 273,442.80, 377,430.25 and 158,747.21 is: 219,117.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,442.80 : 377,430.25 = 158,747.21 : x
  2. Step 2: Convert to fraction form
    273,442.80/377,430.25 = 158,747.21/x
  3. Step 3: Cross multiply
    273,442.80x = 377,430.25 × 158,747.21
  4. Step 4: Simplify right side
    273,442.80x = 59,915,997,269.95
  5. Step 5: Solve for x
    x = 59,915,997,269.95/273,442.80
  6. Step 6: Final answer
    x = 219,117.11

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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.