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Finding the Fourth Proportional to 274,810.59, 379,235.12 and 153,949.68

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Solution

The fourth proportional to 274,810.59, 379,235.12 and 153,949.68 is: 212,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,810.59 : 379,235.12 = 153,949.68 : x
  2. Step 2: Convert to fraction form
    274,810.59/379,235.12 = 153,949.68/x
  3. Step 3: Cross multiply
    274,810.59x = 379,235.12 × 153,949.68
  4. Step 4: Simplify right side
    274,810.59x = 58,383,124,599.01
  5. Step 5: Solve for x
    x = 58,383,124,599.01/274,810.59
  6. Step 6: Final answer
    x = 212,448.60

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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.