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Finding the Fourth Proportional to 425,237.96, 637,880.22 and 172,480.92

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Solution

The fourth proportional to 425,237.96, 637,880.22 and 172,480.92 is: 258,730.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,237.96 : 637,880.22 = 172,480.92 : x
  2. Step 2: Convert to fraction form
    425,237.96/637,880.22 = 172,480.92/x
  3. Step 3: Cross multiply
    425,237.96x = 637,880.22 × 172,480.92
  4. Step 4: Simplify right side
    425,237.96x = 110,022,167,195.40
  5. Step 5: Solve for x
    x = 110,022,167,195.40/425,237.96
  6. Step 6: Final answer
    x = 258,730.82

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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.