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Finding the Fourth Proportional to 352,122.08, 485,852.46 and 208,929.50

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Solution

The fourth proportional to 352,122.08, 485,852.46 and 208,929.50 is: 288,277.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,122.08 : 485,852.46 = 208,929.50 : x
  2. Step 2: Convert to fraction form
    352,122.08/485,852.46 = 208,929.50/x
  3. Step 3: Cross multiply
    352,122.08x = 485,852.46 × 208,929.50
  4. Step 4: Simplify right side
    352,122.08x = 101,508,911,541.57
  5. Step 5: Solve for x
    x = 101,508,911,541.57/352,122.08
  6. Step 6: Final answer
    x = 288,277.61

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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.