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Finding the Fourth Proportional to 302,145.90, 453,283.65 and 91,805.10

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Solution

The fourth proportional to 302,145.90, 453,283.65 and 91,805.10 is: 137,727.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,145.90 : 453,283.65 = 91,805.10 : x
  2. Step 2: Convert to fraction form
    302,145.90/453,283.65 = 91,805.10/x
  3. Step 3: Cross multiply
    302,145.90x = 453,283.65 × 91,805.10
  4. Step 4: Simplify right side
    302,145.90x = 41,613,750,816.62
  5. Step 5: Solve for x
    x = 41,613,750,816.62/302,145.90
  6. Step 6: Final answer
    x = 137,727.34

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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.