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Finding the Fourth Proportional to 395,752.36, 545,948.10 and 259,731.88

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Solution

The fourth proportional to 395,752.36, 545,948.10 and 259,731.88 is: 358,305.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,752.36 : 545,948.10 = 259,731.88 : x
  2. Step 2: Convert to fraction form
    395,752.36/545,948.10 = 259,731.88/x
  3. Step 3: Cross multiply
    395,752.36x = 545,948.10 × 259,731.88
  4. Step 4: Simplify right side
    395,752.36x = 141,800,126,395.43
  5. Step 5: Solve for x
    x = 141,800,126,395.43/395,752.36
  6. Step 6: Final answer
    x = 358,305.19

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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.