Home / 458,975.16-688,732.20-192,715.20

Finding the Fourth Proportional to 458,975.16, 688,732.20 and 192,715.20

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Solution

The fourth proportional to 458,975.16, 688,732.20 and 192,715.20 is: 289,185.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,975.16 : 688,732.20 = 192,715.20 : x
  2. Step 2: Convert to fraction form
    458,975.16/688,732.20 = 192,715.20/x
  3. Step 3: Cross multiply
    458,975.16x = 688,732.20 × 192,715.20
  4. Step 4: Simplify right side
    458,975.16x = 132,729,163,669.44
  5. Step 5: Solve for x
    x = 132,729,163,669.44/458,975.16
  6. Step 6: Final answer
    x = 289,185.94

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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.