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Finding the Fourth Proportional to 277,805.32, 416,719.50 and 80,813.32

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Solution

The fourth proportional to 277,805.32, 416,719.50 and 80,813.32 is: 121,223.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,805.32 : 416,719.50 = 80,813.32 : x
  2. Step 2: Convert to fraction form
    277,805.32/416,719.50 = 80,813.32/x
  3. Step 3: Cross multiply
    277,805.32x = 416,719.50 × 80,813.32
  4. Step 4: Simplify right side
    277,805.32x = 33,676,486,303.74
  5. Step 5: Solve for x
    x = 33,676,486,303.74/277,805.32
  6. Step 6: Final answer
    x = 121,223.33

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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.