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Finding the Fourth Proportional to 171,305.10, 256,969.80 and 52,985.97

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Solution

The fourth proportional to 171,305.10, 256,969.80 and 52,985.97 is: 79,482.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,305.10 : 256,969.80 = 52,985.97 : x
  2. Step 2: Convert to fraction form
    171,305.10/256,969.80 = 52,985.97/x
  3. Step 3: Cross multiply
    171,305.10x = 256,969.80 × 52,985.97
  4. Step 4: Simplify right side
    171,305.10x = 13,615,794,113.71
  5. Step 5: Solve for x
    x = 13,615,794,113.71/171,305.10
  6. Step 6: Final answer
    x = 79,482.71

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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.