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Finding the Fourth Proportional to 369,992.52, 510,612.66 and 208,788.75

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Solution

The fourth proportional to 369,992.52, 510,612.66 and 208,788.75 is: 288,141.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,992.52 : 510,612.66 = 208,788.75 : x
  2. Step 2: Convert to fraction form
    369,992.52/510,612.66 = 208,788.75/x
  3. Step 3: Cross multiply
    369,992.52x = 510,612.66 × 208,788.75
  4. Step 4: Simplify right side
    369,992.52x = 106,610,179,015.58
  5. Step 5: Solve for x
    x = 106,610,179,015.58/369,992.52
  6. Step 6: Final answer
    x = 288,141.44

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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.