Home / 305,904.36-422,148.47-169,934.61

Finding the Fourth Proportional to 305,904.36, 422,148.47 and 169,934.61

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Solution

The fourth proportional to 305,904.36, 422,148.47 and 169,934.61 is: 234,510.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,904.36 : 422,148.47 = 169,934.61 : x
  2. Step 2: Convert to fraction form
    305,904.36/422,148.47 = 169,934.61/x
  3. Step 3: Cross multiply
    305,904.36x = 422,148.47 × 169,934.61
  4. Step 4: Simplify right side
    305,904.36x = 71,737,635,611.55
  5. Step 5: Solve for x
    x = 71,737,635,611.55/305,904.36
  6. Step 6: Final answer
    x = 234,510.01

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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.