Home / 458,981.16-688,741.20-192,721.20

Finding the Fourth Proportional to 458,981.16, 688,741.20 and 192,721.20

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Solution

The fourth proportional to 458,981.16, 688,741.20 and 192,721.20 is: 289,194.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,981.16 : 688,741.20 = 192,721.20 : x
  2. Step 2: Convert to fraction form
    458,981.16/688,741.20 = 192,721.20/x
  3. Step 3: Cross multiply
    458,981.16x = 688,741.20 × 192,721.20
  4. Step 4: Simplify right side
    458,981.16x = 132,735,030,553.44
  5. Step 5: Solve for x
    x = 132,735,030,553.44/458,981.16
  6. Step 6: Final answer
    x = 289,194.94

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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.