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Finding the Fourth Proportional to 303,511.60, 455,267.40 and 277,923.70

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Solution

The fourth proportional to 303,511.60, 455,267.40 and 277,923.70 is: 416,885.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,511.60 : 455,267.40 = 277,923.70 : x
  2. Step 2: Convert to fraction form
    303,511.60/455,267.40 = 277,923.70/x
  3. Step 3: Cross multiply
    303,511.60x = 455,267.40 × 277,923.70
  4. Step 4: Simplify right side
    303,511.60x = 126,529,600,297.38
  5. Step 5: Solve for x
    x = 126,529,600,297.38/303,511.60
  6. Step 6: Final answer
    x = 416,885.55

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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.