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Finding the Fourth Proportional to 171,061.60, 256,300.80 and 141,318.40

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Solution

The fourth proportional to 171,061.60, 256,300.80 and 141,318.40 is: 211,736.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,061.60 : 256,300.80 = 141,318.40 : x
  2. Step 2: Convert to fraction form
    171,061.60/256,300.80 = 141,318.40/x
  3. Step 3: Cross multiply
    171,061.60x = 256,300.80 × 141,318.40
  4. Step 4: Simplify right side
    171,061.60x = 36,220,018,974.72
  5. Step 5: Solve for x
    x = 36,220,018,974.72/171,061.60
  6. Step 6: Final answer
    x = 211,736.70

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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.