Home / 285,081.41-393,391.73-157,759.13

Finding the Fourth Proportional to 285,081.41, 393,391.73 and 157,759.13

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Solution

The fourth proportional to 285,081.41, 393,391.73 and 157,759.13 is: 217,696.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,081.41 : 393,391.73 = 157,759.13 : x
  2. Step 2: Convert to fraction form
    285,081.41/393,391.73 = 157,759.13/x
  3. Step 3: Cross multiply
    285,081.41x = 393,391.73 × 157,759.13
  4. Step 4: Simplify right side
    285,081.41x = 62,061,137,073.99
  5. Step 5: Solve for x
    x = 62,061,137,073.99/285,081.41
  6. Step 6: Final answer
    x = 217,696.19

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1.5x scale

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.