Home / 277,748.12-416,643.78-90,778.52

Finding the Fourth Proportional to 277,748.12, 416,643.78 and 90,778.52

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Solution

The fourth proportional to 277,748.12, 416,643.78 and 90,778.52 is: 136,174.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,748.12 : 416,643.78 = 90,778.52 : x
  2. Step 2: Convert to fraction form
    277,748.12/416,643.78 = 90,778.52/x
  3. Step 3: Cross multiply
    277,748.12x = 416,643.78 × 90,778.52
  4. Step 4: Simplify right side
    277,748.12x = 37,822,307,097.63
  5. Step 5: Solve for x
    x = 37,822,307,097.63/277,748.12
  6. Step 6: Final answer
    x = 136,174.84

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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.