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Finding the Fourth Proportional to 171,089.20, 256,342.20 and 146,011.60

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Solution

The fourth proportional to 171,089.20, 256,342.20 and 146,011.60 is: 218,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,089.20 : 256,342.20 = 146,011.60 : x
  2. Step 2: Convert to fraction form
    171,089.20/256,342.20 = 146,011.60/x
  3. Step 3: Cross multiply
    171,089.20x = 256,342.20 × 146,011.60
  4. Step 4: Simplify right side
    171,089.20x = 37,428,934,769.52
  5. Step 5: Solve for x
    x = 37,428,934,769.52/171,089.20
  6. Step 6: Final answer
    x = 218,768.54

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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.