Home / 285,310.50-393,723.65-157,983.36

Finding the Fourth Proportional to 285,310.50, 393,723.65 and 157,983.36

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Solution

The fourth proportional to 285,310.50, 393,723.65 and 157,983.36 is: 218,014.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,310.50 : 393,723.65 = 157,983.36 : x
  2. Step 2: Convert to fraction form
    285,310.50/393,723.65 = 157,983.36/x
  3. Step 3: Cross multiply
    285,310.50x = 393,723.65 × 157,983.36
  4. Step 4: Simplify right side
    285,310.50x = 62,201,785,138.46
  5. Step 5: Solve for x
    x = 62,201,785,138.46/285,310.50
  6. Step 6: Final answer
    x = 218,014.36

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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.