Home / 401,814.66-554,511.11-220,543.50

Finding the Fourth Proportional to 401,814.66, 554,511.11 and 220,543.50

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Solution

The fourth proportional to 401,814.66, 554,511.11 and 220,543.50 is: 304,353.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,814.66 : 554,511.11 = 220,543.50 : x
  2. Step 2: Convert to fraction form
    401,814.66/554,511.11 = 220,543.50/x
  3. Step 3: Cross multiply
    401,814.66x = 554,511.11 × 220,543.50
  4. Step 4: Simplify right side
    401,814.66x = 122,293,820,988.29
  5. Step 5: Solve for x
    x = 122,293,820,988.29/401,814.66
  6. Step 6: Final answer
    x = 304,353.81

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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.