Home / 378,784.48-568,029.12-141,998

Finding the Fourth Proportional to 378,784.48, 568,029.12 and 141,998

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Solution

The fourth proportional to 378,784.48, 568,029.12 and 141,998 is: 212,941.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,784.48 : 568,029.12 = 141,998 : x
  2. Step 2: Convert to fraction form
    378,784.48/568,029.12 = 141,998/x
  3. Step 3: Cross multiply
    378,784.48x = 568,029.12 × 141,998
  4. Step 4: Simplify right side
    378,784.48x = 80,658,998,981.76
  5. Step 5: Solve for x
    x = 80,658,998,981.76/378,784.48
  6. Step 6: Final answer
    x = 212,941.67

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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.