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Finding the Fourth Proportional to 277,603.20, 416,302.40 and 90,620.80

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Solution

The fourth proportional to 277,603.20, 416,302.40 and 90,620.80 is: 135,897.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,603.20 : 416,302.40 = 90,620.80 : x
  2. Step 2: Convert to fraction form
    277,603.20/416,302.40 = 90,620.80/x
  3. Step 3: Cross multiply
    277,603.20x = 416,302.40 × 90,620.80
  4. Step 4: Simplify right side
    277,603.20x = 37,725,656,529.92
  5. Step 5: Solve for x
    x = 37,725,656,529.92/277,603.20
  6. Step 6: Final answer
    x = 135,897.77

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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.