Home / 400,427.90-552,583.11-219,136.17

Finding the Fourth Proportional to 400,427.90, 552,583.11 and 219,136.17

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Solution

The fourth proportional to 400,427.90, 552,583.11 and 219,136.17 is: 302,403.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,427.90 : 552,583.11 = 219,136.17 : x
  2. Step 2: Convert to fraction form
    400,427.90/552,583.11 = 219,136.17/x
  3. Step 3: Cross multiply
    400,427.90x = 552,583.11 × 219,136.17
  4. Step 4: Simplify right side
    400,427.90x = 121,090,946,332.09
  5. Step 5: Solve for x
    x = 121,090,946,332.09/400,427.90
  6. Step 6: Final answer
    x = 302,403.87

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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.