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Finding the Fourth Proportional to 302,397.28, 453,464.80 and 91,986.64

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Solution

The fourth proportional to 302,397.28, 453,464.80 and 91,986.64 is: 137,940.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,397.28 : 453,464.80 = 91,986.64 : x
  2. Step 2: Convert to fraction form
    302,397.28/453,464.80 = 91,986.64/x
  3. Step 3: Cross multiply
    302,397.28x = 453,464.80 × 91,986.64
  4. Step 4: Simplify right side
    302,397.28x = 41,712,703,310.27
  5. Step 5: Solve for x
    x = 41,712,703,310.27/302,397.28
  6. Step 6: Final answer
    x = 137,940.07

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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.