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Finding the Fourth Proportional to 374,999.15, 517,495.21 and 202,913.36

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Solution

The fourth proportional to 374,999.15, 517,495.21 and 202,913.36 is: 280,018.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,999.15 : 517,495.21 = 202,913.36 : x
  2. Step 2: Convert to fraction form
    374,999.15/517,495.21 = 202,913.36/x
  3. Step 3: Cross multiply
    374,999.15x = 517,495.21 × 202,913.36
  4. Step 4: Simplify right side
    374,999.15x = 105,006,690,830.44
  5. Step 5: Solve for x
    x = 105,006,690,830.44/374,999.15
  6. Step 6: Final answer
    x = 280,018.48

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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.