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Finding the Fourth Proportional to 369,634.07, 510,073.87 and 208,479.51

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Solution

The fourth proportional to 369,634.07, 510,073.87 and 208,479.51 is: 287,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,634.07 : 510,073.87 = 208,479.51 : x
  2. Step 2: Convert to fraction form
    369,634.07/510,073.87 = 208,479.51/x
  3. Step 3: Cross multiply
    369,634.07x = 510,073.87 × 208,479.51
  4. Step 4: Simplify right side
    369,634.07x = 106,339,950,481.40
  5. Step 5: Solve for x
    x = 106,339,950,481.40/369,634.07
  6. Step 6: Final answer
    x = 287,689.80

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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.