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Finding the Fourth Proportional to 173,287.84, 259,569.15 and 139,370.54

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Solution

The fourth proportional to 173,287.84, 259,569.15 and 139,370.54 is: 208,764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,287.84 : 259,569.15 = 139,370.54 : x
  2. Step 2: Convert to fraction form
    173,287.84/259,569.15 = 139,370.54/x
  3. Step 3: Cross multiply
    173,287.84x = 259,569.15 × 139,370.54
  4. Step 4: Simplify right side
    173,287.84x = 36,176,293,600.19
  5. Step 5: Solve for x
    x = 36,176,293,600.19/173,287.84
  6. Step 6: Final answer
    x = 208,764.18

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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.