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Finding the Fourth Proportional to 303,936.60, 455,904.90 and 135,537.60

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Solution

The fourth proportional to 303,936.60, 455,904.90 and 135,537.60 is: 203,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,936.60 : 455,904.90 = 135,537.60 : x
  2. Step 2: Convert to fraction form
    303,936.60/455,904.90 = 135,537.60/x
  3. Step 3: Cross multiply
    303,936.60x = 455,904.90 × 135,537.60
  4. Step 4: Simplify right side
    303,936.60x = 61,792,255,974.24
  5. Step 5: Solve for x
    x = 61,792,255,974.24/303,936.60
  6. Step 6: Final answer
    x = 203,306.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.