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Finding the Fourth Proportional to 463,851.60, 640,105.92 and 259,900.08

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Solution

The fourth proportional to 463,851.60, 640,105.92 and 259,900.08 is: 358,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,851.60 : 640,105.92 = 259,900.08 : x
  2. Step 2: Convert to fraction form
    463,851.60/640,105.92 = 259,900.08/x
  3. Step 3: Cross multiply
    463,851.60x = 640,105.92 × 259,900.08
  4. Step 4: Simplify right side
    463,851.60x = 166,363,579,816.47
  5. Step 5: Solve for x
    x = 166,363,579,816.47/463,851.60
  6. Step 6: Final answer
    x = 358,656.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.