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Finding the Fourth Proportional to 280,940.41, 421,322.77 and 93,908.17

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Solution

The fourth proportional to 280,940.41, 421,322.77 and 93,908.17 is: 140,832.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,940.41 : 421,322.77 = 93,908.17 : x
  2. Step 2: Convert to fraction form
    280,940.41/421,322.77 = 93,908.17/x
  3. Step 3: Cross multiply
    280,940.41x = 421,322.77 × 93,908.17
  4. Step 4: Simplify right side
    280,940.41x = 39,565,650,310.03
  5. Step 5: Solve for x
    x = 39,565,650,310.03/280,940.41
  6. Step 6: Final answer
    x = 140,832.89

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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.