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Finding the Fourth Proportional to 303,303.74, 454,915.96 and 90,067.29

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Solution

The fourth proportional to 303,303.74, 454,915.96 and 90,067.29 is: 135,089.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,303.74 : 454,915.96 = 90,067.29 : x
  2. Step 2: Convert to fraction form
    303,303.74/454,915.96 = 90,067.29/x
  3. Step 3: Cross multiply
    303,303.74x = 454,915.96 × 90,067.29
  4. Step 4: Simplify right side
    303,303.74x = 40,973,048,829.38
  5. Step 5: Solve for x
    x = 40,973,048,829.38/303,303.74
  6. Step 6: Final answer
    x = 135,089.16

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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.