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Finding the Fourth Proportional to 277,626.88, 416,440.18 and 90,638.38

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Solution

The fourth proportional to 277,626.88, 416,440.18 and 90,638.38 is: 135,957.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,626.88 : 416,440.18 = 90,638.38 : x
  2. Step 2: Convert to fraction form
    277,626.88/416,440.18 = 90,638.38/x
  3. Step 3: Cross multiply
    277,626.88x = 416,440.18 × 90,638.38
  4. Step 4: Simplify right side
    277,626.88x = 37,745,463,282.11
  5. Step 5: Solve for x
    x = 37,745,463,282.11/277,626.88
  6. Step 6: Final answer
    x = 135,957.52

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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.