Home / 385,247.43-531,612.54-215,448.75

Finding the Fourth Proportional to 385,247.43, 531,612.54 and 215,448.75

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Solution

The fourth proportional to 385,247.43, 531,612.54 and 215,448.75 is: 297,303.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,247.43 : 531,612.54 = 215,448.75 : x
  2. Step 2: Convert to fraction form
    385,247.43/531,612.54 = 215,448.75/x
  3. Step 3: Cross multiply
    385,247.43x = 531,612.54 × 215,448.75
  4. Step 4: Simplify right side
    385,247.43x = 114,535,257,227.33
  5. Step 5: Solve for x
    x = 114,535,257,227.33/385,247.43
  6. Step 6: Final answer
    x = 297,303.11

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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.