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Finding the Fourth Proportional to 277,287.54, 415,960.47 and 90,313.62

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Solution

The fourth proportional to 277,287.54, 415,960.47 and 90,313.62 is: 135,479.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,287.54 : 415,960.47 = 90,313.62 : x
  2. Step 2: Convert to fraction form
    277,287.54/415,960.47 = 90,313.62/x
  3. Step 3: Cross multiply
    277,287.54x = 415,960.47 × 90,313.62
  4. Step 4: Simplify right side
    277,287.54x = 37,566,895,822.60
  5. Step 5: Solve for x
    x = 37,566,895,822.60/277,287.54
  6. Step 6: Final answer
    x = 135,479.93

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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.