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Finding the Fourth Proportional to 374,806.78, 517,245.59 and 205,040.91

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Solution

The fourth proportional to 374,806.78, 517,245.59 and 205,040.91 is: 282,963.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,806.78 : 517,245.59 = 205,040.91 : x
  2. Step 2: Convert to fraction form
    374,806.78/517,245.59 = 205,040.91/x
  3. Step 3: Cross multiply
    374,806.78x = 517,245.59 × 205,040.91
  4. Step 4: Simplify right side
    374,806.78x = 106,056,506,467.09
  5. Step 5: Solve for x
    x = 106,056,506,467.09/374,806.78
  6. Step 6: Final answer
    x = 282,963.15

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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.