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Finding the Fourth Proportional to 170,825.80, 256,497.90 and 131,427.40

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Solution

The fourth proportional to 170,825.80, 256,497.90 and 131,427.40 is: 197,340.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,825.80 : 256,497.90 = 131,427.40 : x
  2. Step 2: Convert to fraction form
    170,825.80/256,497.90 = 131,427.40/x
  3. Step 3: Cross multiply
    170,825.80x = 256,497.90 × 131,427.40
  4. Step 4: Simplify right side
    170,825.80x = 33,710,852,102.46
  5. Step 5: Solve for x
    x = 33,710,852,102.46/170,825.80
  6. Step 6: Final answer
    x = 197,340.52

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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.