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Finding the Fourth Proportional to 273,845.40, 377,901.90 and 152,979

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Solution

The fourth proportional to 273,845.40, 377,901.90 and 152,979 is: 211,108.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,845.40 : 377,901.90 = 152,979 : x
  2. Step 2: Convert to fraction form
    273,845.40/377,901.90 = 152,979/x
  3. Step 3: Cross multiply
    273,845.40x = 377,901.90 × 152,979
  4. Step 4: Simplify right side
    273,845.40x = 57,811,054,760.10
  5. Step 5: Solve for x
    x = 57,811,054,760.10/273,845.40
  6. Step 6: Final answer
    x = 211,108.37

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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.