Home / 305,787.04-422,000.12-169,821.59

Finding the Fourth Proportional to 305,787.04, 422,000.12 and 169,821.59

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Solution

The fourth proportional to 305,787.04, 422,000.12 and 169,821.59 is: 234,361.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,787.04 : 422,000.12 = 169,821.59 : x
  2. Step 2: Convert to fraction form
    305,787.04/422,000.12 = 169,821.59/x
  3. Step 3: Cross multiply
    305,787.04x = 422,000.12 × 169,821.59
  4. Step 4: Simplify right side
    305,787.04x = 71,664,729,248.59
  5. Step 5: Solve for x
    x = 71,664,729,248.59/305,787.04
  6. Step 6: Final answer
    x = 234,361.57

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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.