Home / 285,929.76-394,630.40-158,646.36

Finding the Fourth Proportional to 285,929.76, 394,630.40 and 158,646.36

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Solution

The fourth proportional to 285,929.76, 394,630.40 and 158,646.36 is: 218,958.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,929.76 : 394,630.40 = 158,646.36 : x
  2. Step 2: Convert to fraction form
    285,929.76/394,630.40 = 158,646.36/x
  3. Step 3: Cross multiply
    285,929.76x = 394,630.40 × 158,646.36
  4. Step 4: Simplify right side
    285,929.76x = 62,606,676,505.34
  5. Step 5: Solve for x
    x = 62,606,676,505.34/285,929.76
  6. Step 6: Final answer
    x = 218,958.24

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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.