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Finding the Fourth Proportional to 352,664.46, 486,686.58 and 207,480.45

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Solution

The fourth proportional to 352,664.46, 486,686.58 and 207,480.45 is: 286,328.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,664.46 : 486,686.58 = 207,480.45 : x
  2. Step 2: Convert to fraction form
    352,664.46/486,686.58 = 207,480.45/x
  3. Step 3: Cross multiply
    352,664.46x = 486,686.58 × 207,480.45
  4. Step 4: Simplify right side
    352,664.46x = 100,977,950,627.36
  5. Step 5: Solve for x
    x = 100,977,950,627.36/352,664.46
  6. Step 6: Final answer
    x = 286,328.68

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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.