Home / 285,970.02-394,685.94-158,686.62

Finding the Fourth Proportional to 285,970.02, 394,685.94 and 158,686.62

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Solution

The fourth proportional to 285,970.02, 394,685.94 and 158,686.62 is: 219,013.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,970.02 : 394,685.94 = 158,686.62 : x
  2. Step 2: Convert to fraction form
    285,970.02/394,685.94 = 158,686.62/x
  3. Step 3: Cross multiply
    285,970.02x = 394,685.94 × 158,686.62
  4. Step 4: Simplify right side
    285,970.02x = 62,631,377,780.12
  5. Step 5: Solve for x
    x = 62,631,377,780.12/285,970.02
  6. Step 6: Final answer
    x = 219,013.79

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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.