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Finding the Fourth Proportional to 352,026.50, 485,880.60 and 208,869.62

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Solution

The fourth proportional to 352,026.50, 485,880.60 and 208,869.62 is: 288,289.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,026.50 : 485,880.60 = 208,869.62 : x
  2. Step 2: Convert to fraction form
    352,026.50/485,880.60 = 208,869.62/x
  3. Step 3: Cross multiply
    352,026.50x = 485,880.60 × 208,869.62
  4. Step 4: Simplify right side
    352,026.50x = 101,485,696,287.37
  5. Step 5: Solve for x
    x = 101,485,696,287.37/352,026.50
  6. Step 6: Final answer
    x = 288,289.93

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1.5x scale

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.