Home / 318,214.05-439,026.12-197,311.83

Finding the Fourth Proportional to 318,214.05, 439,026.12 and 197,311.83

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Solution

The fourth proportional to 318,214.05, 439,026.12 and 197,311.83 is: 272,222.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,214.05 : 439,026.12 = 197,311.83 : x
  2. Step 2: Convert to fraction form
    318,214.05/439,026.12 = 197,311.83/x
  3. Step 3: Cross multiply
    318,214.05x = 439,026.12 × 197,311.83
  4. Step 4: Simplify right side
    318,214.05x = 86,625,047,155.00
  5. Step 5: Solve for x
    x = 86,625,047,155.00/318,214.05
  6. Step 6: Final answer
    x = 272,222.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.