Home / 285,310.29-393,740.07-157,985.88

Finding the Fourth Proportional to 285,310.29, 393,740.07 and 157,985.88

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Solution

The fourth proportional to 285,310.29, 393,740.07 and 157,985.88 is: 218,027.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,310.29 : 393,740.07 = 157,985.88 : x
  2. Step 2: Convert to fraction form
    285,310.29/393,740.07 = 157,985.88/x
  3. Step 3: Cross multiply
    285,310.29x = 393,740.07 × 157,985.88
  4. Step 4: Simplify right side
    285,310.29x = 62,205,370,660.28
  5. Step 5: Solve for x
    x = 62,205,370,660.28/285,310.29
  6. Step 6: Final answer
    x = 218,027.08

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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.