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Finding the Fourth Proportional to 325,535.70, 488,230.65 and 213,998.70

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Solution

The fourth proportional to 325,535.70, 488,230.65 and 213,998.70 is: 320,950.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,535.70 : 488,230.65 = 213,998.70 : x
  2. Step 2: Convert to fraction form
    325,535.70/488,230.65 = 213,998.70/x
  3. Step 3: Cross multiply
    325,535.70x = 488,230.65 × 213,998.70
  4. Step 4: Simplify right side
    325,535.70x = 104,480,724,400.16
  5. Step 5: Solve for x
    x = 104,480,724,400.16/325,535.70
  6. Step 6: Final answer
    x = 320,950.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.