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Finding the Fourth Proportional to 273,815.50, 377,865.40 and 154,583.50

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Solution

The fourth proportional to 273,815.50, 377,865.40 and 154,583.50 is: 213,325.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,815.50 : 377,865.40 = 154,583.50 : x
  2. Step 2: Convert to fraction form
    273,815.50/377,865.40 = 154,583.50/x
  3. Step 3: Cross multiply
    273,815.50x = 377,865.40 × 154,583.50
  4. Step 4: Simplify right side
    273,815.50x = 58,411,756,060.90
  5. Step 5: Solve for x
    x = 58,411,756,060.90/273,815.50
  6. Step 6: Final answer
    x = 213,325.24

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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.