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Finding the Fourth Proportional to 374,849.48, 517,375.32 and 258,726

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Solution

The fourth proportional to 374,849.48, 517,375.32 and 258,726 is: 357,099.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,849.48 : 517,375.32 = 258,726 : x
  2. Step 2: Convert to fraction form
    374,849.48/517,375.32 = 258,726/x
  3. Step 3: Cross multiply
    374,849.48x = 517,375.32 × 258,726
  4. Step 4: Simplify right side
    374,849.48x = 133,858,447,042.32
  5. Step 5: Solve for x
    x = 133,858,447,042.32/374,849.48
  6. Step 6: Final answer
    x = 357,099.19

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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.