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Finding the Fourth Proportional to 171,659.56, 257,440.13 and 51,728.12

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Solution

The fourth proportional to 171,659.56, 257,440.13 and 51,728.12 is: 77,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,659.56 : 257,440.13 = 51,728.12 : x
  2. Step 2: Convert to fraction form
    171,659.56/257,440.13 = 51,728.12/x
  3. Step 3: Cross multiply
    171,659.56x = 257,440.13 × 51,728.12
  4. Step 4: Simplify right side
    171,659.56x = 13,316,893,678.82
  5. Step 5: Solve for x
    x = 13,316,893,678.82/171,659.56
  6. Step 6: Final answer
    x = 77,577.35

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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.