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Finding the Fourth Proportional to 280,625.88, 420,942.48 and 93,637.38

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Solution

The fourth proportional to 280,625.88, 420,942.48 and 93,637.38 is: 140,457.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,625.88 : 420,942.48 = 93,637.38 : x
  2. Step 2: Convert to fraction form
    280,625.88/420,942.48 = 93,637.38/x
  3. Step 3: Cross multiply
    280,625.88x = 420,942.48 × 93,637.38
  4. Step 4: Simplify right side
    280,625.88x = 39,415,950,957.90
  5. Step 5: Solve for x
    x = 39,415,950,957.90/280,625.88
  6. Step 6: Final answer
    x = 140,457.29

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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.