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Finding the Fourth Proportional to 273,405.78, 377,299.45 and 152,539.88

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Solution

The fourth proportional to 273,405.78, 377,299.45 and 152,539.88 is: 210,504.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,405.78 : 377,299.45 = 152,539.88 : x
  2. Step 2: Convert to fraction form
    273,405.78/377,299.45 = 152,539.88/x
  3. Step 3: Cross multiply
    273,405.78x = 377,299.45 × 152,539.88
  4. Step 4: Simplify right side
    273,405.78x = 57,553,212,827.07
  5. Step 5: Solve for x
    x = 57,553,212,827.07/273,405.78
  6. Step 6: Final answer
    x = 210,504.74

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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.