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Finding the Fourth Proportional to 275,551.32, 380,282.78 and 154,700.52

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Solution

The fourth proportional to 275,551.32, 380,282.78 and 154,700.52 is: 213,499.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,551.32 : 380,282.78 = 154,700.52 : x
  2. Step 2: Convert to fraction form
    275,551.32/380,282.78 = 154,700.52/x
  3. Step 3: Cross multiply
    275,551.32x = 380,282.78 × 154,700.52
  4. Step 4: Simplify right side
    275,551.32x = 58,829,943,813.05
  5. Step 5: Solve for x
    x = 58,829,943,813.05/275,551.32
  6. Step 6: Final answer
    x = 213,499.05

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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.