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Finding the Fourth Proportional to 276,487.66, 381,615.18 and 180,938.98

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Solution

The fourth proportional to 276,487.66, 381,615.18 and 180,938.98 is: 249,736.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,487.66 : 381,615.18 = 180,938.98 : x
  2. Step 2: Convert to fraction form
    276,487.66/381,615.18 = 180,938.98/x
  3. Step 3: Cross multiply
    276,487.66x = 381,615.18 × 180,938.98
  4. Step 4: Simplify right side
    276,487.66x = 69,049,061,421.72
  5. Step 5: Solve for x
    x = 69,049,061,421.72/276,487.66
  6. Step 6: Final answer
    x = 249,736.50

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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.