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Finding the Fourth Proportional to 171,285.60, 256,928.40 and 60,477.60

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Solution

The fourth proportional to 171,285.60, 256,928.40 and 60,477.60 is: 90,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,285.60 : 256,928.40 = 60,477.60 : x
  2. Step 2: Convert to fraction form
    171,285.60/256,928.40 = 60,477.60/x
  3. Step 3: Cross multiply
    171,285.60x = 256,928.40 × 60,477.60
  4. Step 4: Simplify right side
    171,285.60x = 15,538,413,003.84
  5. Step 5: Solve for x
    x = 15,538,413,003.84/171,285.60
  6. Step 6: Final answer
    x = 90,716.40

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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.