Home / 401,479.35-554,039.91-220,186.50

Finding the Fourth Proportional to 401,479.35, 554,039.91 and 220,186.50

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Solution

The fourth proportional to 401,479.35, 554,039.91 and 220,186.50 is: 303,856.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,479.35 : 554,039.91 = 220,186.50 : x
  2. Step 2: Convert to fraction form
    401,479.35/554,039.91 = 220,186.50/x
  3. Step 3: Cross multiply
    401,479.35x = 554,039.91 × 220,186.50
  4. Step 4: Simplify right side
    401,479.35x = 121,992,108,643.22
  5. Step 5: Solve for x
    x = 121,992,108,643.22/401,479.35
  6. Step 6: Final answer
    x = 303,856.50

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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.