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Finding the Fourth Proportional to 299,258.30, 448,883.00 and 139,244.63

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Solution

The fourth proportional to 299,258.30, 448,883.00 and 139,244.63 is: 208,864.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,258.30 : 448,883.00 = 139,244.63 : x
  2. Step 2: Convert to fraction form
    299,258.30/448,883.00 = 139,244.63/x
  3. Step 3: Cross multiply
    299,258.30x = 448,883.00 × 139,244.63
  4. Step 4: Simplify right side
    299,258.30x = 62,504,544,829.82
  5. Step 5: Solve for x
    x = 62,504,544,829.82/299,258.30
  6. Step 6: Final answer
    x = 208,864.86

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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.