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Finding the Fourth Proportional to 348,355.58, 480,775.17 and 205,128.95

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Solution

The fourth proportional to 348,355.58, 480,775.17 and 205,128.95 is: 283,104.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,355.58 : 480,775.17 = 205,128.95 : x
  2. Step 2: Convert to fraction form
    348,355.58/480,775.17 = 205,128.95/x
  3. Step 3: Cross multiply
    348,355.58x = 480,775.17 × 205,128.95
  4. Step 4: Simplify right side
    348,355.58x = 98,620,903,404.30
  5. Step 5: Solve for x
    x = 98,620,903,404.30/348,355.58
  6. Step 6: Final answer
    x = 283,104.13

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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.