Home / 399,327.38-551,083.14-218,050.82

Finding the Fourth Proportional to 399,327.38, 551,083.14 and 218,050.82

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Solution

The fourth proportional to 399,327.38, 551,083.14 and 218,050.82 is: 300,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,327.38 : 551,083.14 = 218,050.82 : x
  2. Step 2: Convert to fraction form
    399,327.38/551,083.14 = 218,050.82/x
  3. Step 3: Cross multiply
    399,327.38x = 551,083.14 × 218,050.82
  4. Step 4: Simplify right side
    399,327.38x = 120,164,130,565.18
  5. Step 5: Solve for x
    x = 120,164,130,565.18/399,327.38
  6. Step 6: Final answer
    x = 300,916.33

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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.