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Finding the Fourth Proportional to 280,213.88, 420,324.48 and 93,225.38

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Solution

The fourth proportional to 280,213.88, 420,324.48 and 93,225.38 is: 139,839.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,213.88 : 420,324.48 = 93,225.38 : x
  2. Step 2: Convert to fraction form
    280,213.88/420,324.48 = 93,225.38/x
  3. Step 3: Cross multiply
    280,213.88x = 420,324.48 × 93,225.38
  4. Step 4: Simplify right side
    280,213.88x = 39,184,907,269.68
  5. Step 5: Solve for x
    x = 39,184,907,269.68/280,213.88
  6. Step 6: Final answer
    x = 139,839.28

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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.