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Finding the Fourth Proportional to 277,445.70, 416,180.68 and 87,920.03

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Solution

The fourth proportional to 277,445.70, 416,180.68 and 87,920.03 is: 131,883.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,445.70 : 416,180.68 = 87,920.03 : x
  2. Step 2: Convert to fraction form
    277,445.70/416,180.68 = 87,920.03/x
  3. Step 3: Cross multiply
    277,445.70x = 416,180.68 × 87,920.03
  4. Step 4: Simplify right side
    277,445.70x = 36,590,618,691.67
  5. Step 5: Solve for x
    x = 36,590,618,691.67/277,445.70
  6. Step 6: Final answer
    x = 131,883.89

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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.