Home / 443,890.04-665,867.46-128,348.60

Finding the Fourth Proportional to 443,890.04, 665,867.46 and 128,348.60

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Solution

The fourth proportional to 443,890.04, 665,867.46 and 128,348.60 is: 192,532.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,890.04 : 665,867.46 = 128,348.60 : x
  2. Step 2: Convert to fraction form
    443,890.04/665,867.46 = 128,348.60/x
  3. Step 3: Cross multiply
    443,890.04x = 665,867.46 × 128,348.60
  4. Step 4: Simplify right side
    443,890.04x = 85,463,156,276.56
  5. Step 5: Solve for x
    x = 85,463,156,276.56/443,890.04
  6. Step 6: Final answer
    x = 192,532.27

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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.