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Finding the Fourth Proportional to 379,998.55, 524,394.11 and 210,233.89

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Solution

The fourth proportional to 379,998.55, 524,394.11 and 210,233.89 is: 290,120.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,998.55 : 524,394.11 = 210,233.89 : x
  2. Step 2: Convert to fraction form
    379,998.55/524,394.11 = 210,233.89/x
  3. Step 3: Cross multiply
    379,998.55x = 524,394.11 × 210,233.89
  4. Step 4: Simplify right side
    379,998.55x = 110,245,413,638.39
  5. Step 5: Solve for x
    x = 110,245,413,638.39/379,998.55
  6. Step 6: Final answer
    x = 290,120.62

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1.5x scale

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.