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Finding the Fourth Proportional to 183,240.80, 274,861.20 and 155,247.20

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Solution

The fourth proportional to 183,240.80, 274,861.20 and 155,247.20 is: 232,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,240.80 : 274,861.20 = 155,247.20 : x
  2. Step 2: Convert to fraction form
    183,240.80/274,861.20 = 155,247.20/x
  3. Step 3: Cross multiply
    183,240.80x = 274,861.20 × 155,247.20
  4. Step 4: Simplify right side
    183,240.80x = 42,671,431,688.64
  5. Step 5: Solve for x
    x = 42,671,431,688.64/183,240.80
  6. Step 6: Final answer
    x = 232,870.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.