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Finding the Fourth Proportional to 341,201.88, 470,360.16 and 238,905

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Solution

The fourth proportional to 341,201.88, 470,360.16 and 238,905 is: 329,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,201.88 : 470,360.16 = 238,905 : x
  2. Step 2: Convert to fraction form
    341,201.88/470,360.16 = 238,905/x
  3. Step 3: Cross multiply
    341,201.88x = 470,360.16 × 238,905
  4. Step 4: Simplify right side
    341,201.88x = 112,371,394,024.80
  5. Step 5: Solve for x
    x = 112,371,394,024.80/341,201.88
  6. Step 6: Final answer
    x = 329,339.90

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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.