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Finding the Fourth Proportional to 289,762.99, 434,535.13 and 121,295.04

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Solution

The fourth proportional to 289,762.99, 434,535.13 and 121,295.04 is: 181,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,762.99 : 434,535.13 = 121,295.04 : x
  2. Step 2: Convert to fraction form
    289,762.99/434,535.13 = 121,295.04/x
  3. Step 3: Cross multiply
    289,762.99x = 434,535.13 × 121,295.04
  4. Step 4: Simplify right side
    289,762.99x = 52,706,954,496.87
  5. Step 5: Solve for x
    x = 52,706,954,496.87/289,762.99
  6. Step 6: Final answer
    x = 181,896.78

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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.