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Finding the Fourth Proportional to 352,729.86, 486,500.49 and 245,246.10

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Solution

The fourth proportional to 352,729.86, 486,500.49 and 245,246.10 is: 338,254.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,729.86 : 486,500.49 = 245,246.10 : x
  2. Step 2: Convert to fraction form
    352,729.86/486,500.49 = 245,246.10/x
  3. Step 3: Cross multiply
    352,729.86x = 486,500.49 × 245,246.10
  4. Step 4: Simplify right side
    352,729.86x = 119,312,347,820.59
  5. Step 5: Solve for x
    x = 119,312,347,820.59/352,729.86
  6. Step 6: Final answer
    x = 338,254.18

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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.