Home / 284,720.10-426,302.55-205,404.90

Finding the Fourth Proportional to 284,720.10, 426,302.55 and 205,404.90

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Solution

The fourth proportional to 284,720.10, 426,302.55 and 205,404.90 is: 307,546.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,720.10 : 426,302.55 = 205,404.90 : x
  2. Step 2: Convert to fraction form
    284,720.10/426,302.55 = 205,404.90/x
  3. Step 3: Cross multiply
    284,720.10x = 426,302.55 × 205,404.90
  4. Step 4: Simplify right side
    284,720.10x = 87,564,632,652.50
  5. Step 5: Solve for x
    x = 87,564,632,652.50/284,720.10
  6. Step 6: Final answer
    x = 307,546.37

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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.