Home / 385,374.31-531,817.01-215,608.57

Finding the Fourth Proportional to 385,374.31, 531,817.01 and 215,608.57

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Solution

The fourth proportional to 385,374.31, 531,817.01 and 215,608.57 is: 297,540.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,374.31 : 531,817.01 = 215,608.57 : x
  2. Step 2: Convert to fraction form
    385,374.31/531,817.01 = 215,608.57/x
  3. Step 3: Cross multiply
    385,374.31x = 531,817.01 × 215,608.57
  4. Step 4: Simplify right side
    385,374.31x = 114,664,303,428.72
  5. Step 5: Solve for x
    x = 114,664,303,428.72/385,374.31
  6. Step 6: Final answer
    x = 297,540.08

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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.