Home / 285,310.54-393,723.73-157,983.40

Finding the Fourth Proportional to 285,310.54, 393,723.73 and 157,983.40

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Solution

The fourth proportional to 285,310.54, 393,723.73 and 157,983.40 is: 218,014.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,310.54 : 393,723.73 = 157,983.40 : x
  2. Step 2: Convert to fraction form
    285,310.54/393,723.73 = 157,983.40/x
  3. Step 3: Cross multiply
    285,310.54x = 393,723.73 × 157,983.40
  4. Step 4: Simplify right side
    285,310.54x = 62,201,813,526.08
  5. Step 5: Solve for x
    x = 62,201,813,526.08/285,310.54
  6. Step 6: Final answer
    x = 218,014.43

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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.