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Finding the Fourth Proportional to 171,189.10, 256,820.10 and 52,872.40

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Solution

The fourth proportional to 171,189.10, 256,820.10 and 52,872.40 is: 79,319.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,189.10 : 256,820.10 = 52,872.40 : x
  2. Step 2: Convert to fraction form
    171,189.10/256,820.10 = 52,872.40/x
  3. Step 3: Cross multiply
    171,189.10x = 256,820.10 × 52,872.40
  4. Step 4: Simplify right side
    171,189.10x = 13,578,695,055.24
  5. Step 5: Solve for x
    x = 13,578,695,055.24/171,189.10
  6. Step 6: Final answer
    x = 79,319.86

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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.