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Finding the Fourth Proportional to 171,017.82, 256,300.74 and 123,790.77

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Solution

The fourth proportional to 171,017.82, 256,300.74 and 123,790.77 is: 185,522.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,017.82 : 256,300.74 = 123,790.77 : x
  2. Step 2: Convert to fraction form
    171,017.82/256,300.74 = 123,790.77/x
  3. Step 3: Cross multiply
    171,017.82x = 256,300.74 × 123,790.77
  4. Step 4: Simplify right side
    171,017.82x = 31,727,665,956.17
  5. Step 5: Solve for x
    x = 31,727,665,956.17/171,017.82
  6. Step 6: Final answer
    x = 185,522.57

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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.