Home / 276,929.78-415,397.96-77,238.02

Finding the Fourth Proportional to 276,929.78, 415,397.96 and 77,238.02

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Solution

The fourth proportional to 276,929.78, 415,397.96 and 77,238.02 is: 115,857.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,929.78 : 415,397.96 = 77,238.02 : x
  2. Step 2: Convert to fraction form
    276,929.78/415,397.96 = 77,238.02/x
  3. Step 3: Cross multiply
    276,929.78x = 415,397.96 × 77,238.02
  4. Step 4: Simplify right side
    276,929.78x = 32,084,513,479.26
  5. Step 5: Solve for x
    x = 32,084,513,479.26/276,929.78
  6. Step 6: Final answer
    x = 115,857.94

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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.