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Finding the Fourth Proportional to 374,988.69, 517,471.62 and 213,895.89

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Solution

The fourth proportional to 374,988.69, 517,471.62 and 213,895.89 is: 295,169.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,988.69 : 517,471.62 = 213,895.89 : x
  2. Step 2: Convert to fraction form
    374,988.69/517,471.62 = 213,895.89/x
  3. Step 3: Cross multiply
    374,988.69x = 517,471.62 × 213,895.89
  4. Step 4: Simplify right side
    374,988.69x = 110,685,052,709.64
  5. Step 5: Solve for x
    x = 110,685,052,709.64/374,988.69
  6. Step 6: Final answer
    x = 295,169.04

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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.