Home / 284,869.71-393,104.19-155,782.56

Finding the Fourth Proportional to 284,869.71, 393,104.19 and 155,782.56

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Solution

The fourth proportional to 284,869.71, 393,104.19 and 155,782.56 is: 214,971.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,869.71 : 393,104.19 = 155,782.56 : x
  2. Step 2: Convert to fraction form
    284,869.71/393,104.19 = 155,782.56/x
  3. Step 3: Cross multiply
    284,869.71x = 393,104.19 × 155,782.56
  4. Step 4: Simplify right side
    284,869.71x = 61,238,777,064.93
  5. Step 5: Solve for x
    x = 61,238,777,064.93/284,869.71
  6. Step 6: Final answer
    x = 214,971.18

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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.