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Finding the Fourth Proportional to 275,017.60, 379,551.18 and 154,159.12

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Solution

The fourth proportional to 275,017.60, 379,551.18 and 154,159.12 is: 212,754.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,017.60 : 379,551.18 = 154,159.12 : x
  2. Step 2: Convert to fraction form
    275,017.60/379,551.18 = 154,159.12/x
  3. Step 3: Cross multiply
    275,017.60x = 379,551.18 × 154,159.12
  4. Step 4: Simplify right side
    275,017.60x = 58,511,275,903.76
  5. Step 5: Solve for x
    x = 58,511,275,903.76/275,017.60
  6. Step 6: Final answer
    x = 212,754.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.