Home / 386,670.13-579,998.80-158,919.59

Finding the Fourth Proportional to 386,670.13, 579,998.80 and 158,919.59

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Solution

The fourth proportional to 386,670.13, 579,998.80 and 158,919.59 is: 238,376.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,670.13 : 579,998.80 = 158,919.59 : x
  2. Step 2: Convert to fraction form
    386,670.13/579,998.80 = 158,919.59/x
  3. Step 3: Cross multiply
    386,670.13x = 579,998.80 × 158,919.59
  4. Step 4: Simplify right side
    386,670.13x = 92,173,171,496.49
  5. Step 5: Solve for x
    x = 92,173,171,496.49/386,670.13
  6. Step 6: Final answer
    x = 238,376.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.