Home / 459,129.57-688,299.90-159,571.23

Finding the Fourth Proportional to 459,129.57, 688,299.90 and 159,571.23

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Solution

The fourth proportional to 459,129.57, 688,299.90 and 159,571.23 is: 239,219.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,129.57 : 688,299.90 = 159,571.23 : x
  2. Step 2: Convert to fraction form
    459,129.57/688,299.90 = 159,571.23/x
  3. Step 3: Cross multiply
    459,129.57x = 688,299.90 × 159,571.23
  4. Step 4: Simplify right side
    459,129.57x = 109,832,861,651.88
  5. Step 5: Solve for x
    x = 109,832,861,651.88/459,129.57
  6. Step 6: Final answer
    x = 239,219.75

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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.