Home / 443,834.99-665,757.34-128,294.63

Finding the Fourth Proportional to 443,834.99, 665,757.34 and 128,294.63

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Solution

The fourth proportional to 443,834.99, 665,757.34 and 128,294.63 is: 192,443.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,834.99 : 665,757.34 = 128,294.63 : x
  2. Step 2: Convert to fraction form
    443,834.99/665,757.34 = 128,294.63/x
  3. Step 3: Cross multiply
    443,834.99x = 665,757.34 × 128,294.63
  4. Step 4: Simplify right side
    443,834.99x = 85,413,088,276.30
  5. Step 5: Solve for x
    x = 85,413,088,276.30/443,834.99
  6. Step 6: Final answer
    x = 192,443.34

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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.