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Finding the Fourth Proportional to 171,984.20, 258,000.60 and 53,643.20

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Solution

The fourth proportional to 171,984.20, 258,000.60 and 53,643.20 is: 80,472.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,984.20 : 258,000.60 = 53,643.20 : x
  2. Step 2: Convert to fraction form
    171,984.20/258,000.60 = 53,643.20/x
  3. Step 3: Cross multiply
    171,984.20x = 258,000.60 × 53,643.20
  4. Step 4: Simplify right side
    171,984.20x = 13,839,977,785.92
  5. Step 5: Solve for x
    x = 13,839,977,785.92/171,984.20
  6. Step 6: Final answer
    x = 80,472.38

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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.