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Finding the Fourth Proportional to 378,258.66, 567,005.27 and 245,223.45

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Solution

The fourth proportional to 378,258.66, 567,005.27 and 245,223.45 is: 367,587.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,258.66 : 567,005.27 = 245,223.45 : x
  2. Step 2: Convert to fraction form
    378,258.66/567,005.27 = 245,223.45/x
  3. Step 3: Cross multiply
    378,258.66x = 567,005.27 × 245,223.45
  4. Step 4: Simplify right side
    378,258.66x = 139,042,987,251.46
  5. Step 5: Solve for x
    x = 139,042,987,251.46/378,258.66
  6. Step 6: Final answer
    x = 367,587.06

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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.