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Finding the Fourth Proportional to 268,736.40, 371,009.20 and 178,214.58

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Solution

The fourth proportional to 268,736.40, 371,009.20 and 178,214.58 is: 246,037.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,736.40 : 371,009.20 = 178,214.58 : x
  2. Step 2: Convert to fraction form
    268,736.40/371,009.20 = 178,214.58/x
  3. Step 3: Cross multiply
    268,736.40x = 371,009.20 × 178,214.58
  4. Step 4: Simplify right side
    268,736.40x = 66,119,248,754.14
  5. Step 5: Solve for x
    x = 66,119,248,754.14/268,736.40
  6. Step 6: Final answer
    x = 246,037.56

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1.5x scale

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.