Home / 356,721.40-492,151.98-229,471.48

Finding the Fourth Proportional to 356,721.40, 492,151.98 and 229,471.48

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Solution

The fourth proportional to 356,721.40, 492,151.98 and 229,471.48 is: 316,591.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,721.40 : 492,151.98 = 229,471.48 : x
  2. Step 2: Convert to fraction form
    356,721.40/492,151.98 = 229,471.48/x
  3. Step 3: Cross multiply
    356,721.40x = 492,151.98 × 229,471.48
  4. Step 4: Simplify right side
    356,721.40x = 112,934,843,235.53
  5. Step 5: Solve for x
    x = 112,934,843,235.53/356,721.40
  6. Step 6: Final answer
    x = 316,591.16

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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.