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Finding the Fourth Proportional to 368,953.29, 508,083.53 and 320,533.11

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Solution

The fourth proportional to 368,953.29, 508,083.53 and 320,533.11 is: 441,404.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,953.29 : 508,083.53 = 320,533.11 : x
  2. Step 2: Convert to fraction form
    368,953.29/508,083.53 = 320,533.11/x
  3. Step 3: Cross multiply
    368,953.29x = 508,083.53 × 320,533.11
  4. Step 4: Simplify right side
    368,953.29x = 162,857,592,408.01
  5. Step 5: Solve for x
    x = 162,857,592,408.01/368,953.29
  6. Step 6: Final answer
    x = 441,404.36

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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.