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Finding the Fourth Proportional to 279,261.56, 415,733.58 and 277,600.80

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Solution

The fourth proportional to 279,261.56, 415,733.58 and 277,600.80 is: 413,261.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,261.56 : 415,733.58 = 277,600.80 : x
  2. Step 2: Convert to fraction form
    279,261.56/415,733.58 = 277,600.80/x
  3. Step 3: Cross multiply
    279,261.56x = 415,733.58 × 277,600.80
  4. Step 4: Simplify right side
    279,261.56x = 115,407,974,394.86
  5. Step 5: Solve for x
    x = 115,407,974,394.86/279,261.56
  6. Step 6: Final answer
    x = 413,261.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.