Home / 443,836.49-665,759.59-128,296.13

Finding the Fourth Proportional to 443,836.49, 665,759.59 and 128,296.13

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Solution

The fourth proportional to 443,836.49, 665,759.59 and 128,296.13 is: 192,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,836.49 : 665,759.59 = 128,296.13 : x
  2. Step 2: Convert to fraction form
    443,836.49/665,759.59 = 128,296.13/x
  3. Step 3: Cross multiply
    443,836.49x = 665,759.59 × 128,296.13
  4. Step 4: Simplify right side
    443,836.49x = 85,414,378,907.39
  5. Step 5: Solve for x
    x = 85,414,378,907.39/443,836.49
  6. Step 6: Final answer
    x = 192,445.60

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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.