Home / 285,930.95-394,585.16-158,606.51

Finding the Fourth Proportional to 285,930.95, 394,585.16 and 158,606.51

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Solution

The fourth proportional to 285,930.95, 394,585.16 and 158,606.51 is: 218,877.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,930.95 : 394,585.16 = 158,606.51 : x
  2. Step 2: Convert to fraction form
    285,930.95/394,585.16 = 158,606.51/x
  3. Step 3: Cross multiply
    285,930.95x = 394,585.16 × 158,606.51
  4. Step 4: Simplify right side
    285,930.95x = 62,583,772,359.43
  5. Step 5: Solve for x
    x = 62,583,772,359.43/285,930.95
  6. Step 6: Final answer
    x = 218,877.23

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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.