Home / 277,279.40-415,919.16-77,629.19

Finding the Fourth Proportional to 277,279.40, 415,919.16 and 77,629.19

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Solution

The fourth proportional to 277,279.40, 415,919.16 and 77,629.19 is: 116,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,279.40 : 415,919.16 = 77,629.19 : x
  2. Step 2: Convert to fraction form
    277,279.40/415,919.16 = 77,629.19/x
  3. Step 3: Cross multiply
    277,279.40x = 415,919.16 × 77,629.19
  4. Step 4: Simplify right side
    277,279.40x = 32,287,467,496.28
  5. Step 5: Solve for x
    x = 32,287,467,496.28/277,279.40
  6. Step 6: Final answer
    x = 116,443.80

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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.