Home / 285,726.04-394,301.28-163,215.76

Finding the Fourth Proportional to 285,726.04, 394,301.28 and 163,215.76

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Solution

The fourth proportional to 285,726.04, 394,301.28 and 163,215.76 is: 225,237.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,726.04 : 394,301.28 = 163,215.76 : x
  2. Step 2: Convert to fraction form
    285,726.04/394,301.28 = 163,215.76/x
  3. Step 3: Cross multiply
    285,726.04x = 394,301.28 × 163,215.76
  4. Step 4: Simplify right side
    285,726.04x = 64,356,183,084.17
  5. Step 5: Solve for x
    x = 64,356,183,084.17/285,726.04
  6. Step 6: Final answer
    x = 225,237.37

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1.5x scale

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.