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Finding the Fourth Proportional to 171,104.39, 256,478.61 and 64,415.06

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Solution

The fourth proportional to 171,104.39, 256,478.61 and 64,415.06 is: 96,555.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,104.39 : 256,478.61 = 64,415.06 : x
  2. Step 2: Convert to fraction form
    171,104.39/256,478.61 = 64,415.06/x
  3. Step 3: Cross multiply
    171,104.39x = 256,478.61 × 64,415.06
  4. Step 4: Simplify right side
    171,104.39x = 16,521,085,051.87
  5. Step 5: Solve for x
    x = 16,521,085,051.87/171,104.39
  6. Step 6: Final answer
    x = 96,555.59

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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.