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Finding the Fourth Proportional to 401,327, 553,828.33 and 220,035.93

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Solution

The fourth proportional to 401,327, 553,828.33 and 220,035.93 is: 303,647.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,327 : 553,828.33 = 220,035.93 : x
  2. Step 2: Convert to fraction form
    401,327/553,828.33 = 220,035.93/x
  3. Step 3: Cross multiply
    401,327x = 553,828.33 × 220,035.93
  4. Step 4: Simplify right side
    401,327x = 121,862,131,651.90
  5. Step 5: Solve for x
    x = 121,862,131,651.90/401,327
  6. Step 6: Final answer
    x = 303,647.98

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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.