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Finding the Fourth Proportional to 284,220.20, 425,511.10 and 173,628.20

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Solution

The fourth proportional to 284,220.20, 425,511.10 and 173,628.20 is: 259,941.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,220.20 : 425,511.10 = 173,628.20 : x
  2. Step 2: Convert to fraction form
    284,220.20/425,511.10 = 173,628.20/x
  3. Step 3: Cross multiply
    284,220.20x = 425,511.10 × 173,628.20
  4. Step 4: Simplify right side
    284,220.20x = 73,880,726,373.02
  5. Step 5: Solve for x
    x = 73,880,726,373.02/284,220.20
  6. Step 6: Final answer
    x = 259,941.86

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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.