Home / 433,012.28-649,578.55-133,516.40

Finding the Fourth Proportional to 433,012.28, 649,578.55 and 133,516.40

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Solution

The fourth proportional to 433,012.28, 649,578.55 and 133,516.40 is: 200,293.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,012.28 : 649,578.55 = 133,516.40 : x
  2. Step 2: Convert to fraction form
    433,012.28/649,578.55 = 133,516.40/x
  3. Step 3: Cross multiply
    433,012.28x = 649,578.55 × 133,516.40
  4. Step 4: Simplify right side
    433,012.28x = 86,729,385,931.54
  5. Step 5: Solve for x
    x = 86,729,385,931.54/433,012.28
  6. Step 6: Final answer
    x = 200,293.13

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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.