Home / 279,258.78-415,729.49-277,598.02

Finding the Fourth Proportional to 279,258.78, 415,729.49 and 277,598.02

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Solution

The fourth proportional to 279,258.78, 415,729.49 and 277,598.02 is: 413,257.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,258.78 : 415,729.49 = 277,598.02 : x
  2. Step 2: Convert to fraction form
    279,258.78/415,729.49 = 277,598.02/x
  3. Step 3: Cross multiply
    279,258.78x = 415,729.49 × 277,598.02
  4. Step 4: Simplify right side
    279,258.78x = 115,405,683,279.61
  5. Step 5: Solve for x
    x = 115,405,683,279.61/279,258.78
  6. Step 6: Final answer
    x = 413,257.13

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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.