Home / 205,890.71-308,433.85-141,837.55

Finding the Fourth Proportional to 205,890.71, 308,433.85 and 141,837.55

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Solution

The fourth proportional to 205,890.71, 308,433.85 and 141,837.55 is: 212,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,890.71 : 308,433.85 = 141,837.55 : x
  2. Step 2: Convert to fraction form
    205,890.71/308,433.85 = 141,837.55/x
  3. Step 3: Cross multiply
    205,890.71x = 308,433.85 × 141,837.55
  4. Step 4: Simplify right side
    205,890.71x = 43,747,501,652.02
  5. Step 5: Solve for x
    x = 43,747,501,652.02/205,890.71
  6. Step 6: Final answer
    x = 212,479.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.