Home / 381,723.67-572,498.02-171,421.75

Finding the Fourth Proportional to 381,723.67, 572,498.02 and 171,421.75

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Solution

The fourth proportional to 381,723.67, 572,498.02 and 171,421.75 is: 257,093.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,723.67 : 572,498.02 = 171,421.75 : x
  2. Step 2: Convert to fraction form
    381,723.67/572,498.02 = 171,421.75/x
  3. Step 3: Cross multiply
    381,723.67x = 572,498.02 × 171,421.75
  4. Step 4: Simplify right side
    381,723.67x = 98,138,612,459.94
  5. Step 5: Solve for x
    x = 98,138,612,459.94/381,723.67
  6. Step 6: Final answer
    x = 257,093.34

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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.