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Finding the Fourth Proportional to 352,358.30, 486,265.28 and 207,137.45

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Solution

The fourth proportional to 352,358.30, 486,265.28 and 207,137.45 is: 285,856.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,358.30 : 486,265.28 = 207,137.45 : x
  2. Step 2: Convert to fraction form
    352,358.30/486,265.28 = 207,137.45/x
  3. Step 3: Cross multiply
    352,358.30x = 486,265.28 × 207,137.45
  4. Step 4: Simplify right side
    352,358.30x = 100,723,750,302.71
  5. Step 5: Solve for x
    x = 100,723,750,302.71/352,358.30
  6. Step 6: Final answer
    x = 285,856.04

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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.