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Finding the Fourth Proportional to 201,679.60, 302,519.40 and 191,838.10

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Solution

The fourth proportional to 201,679.60, 302,519.40 and 191,838.10 is: 287,757.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,679.60 : 302,519.40 = 191,838.10 : x
  2. Step 2: Convert to fraction form
    201,679.60/302,519.40 = 191,838.10/x
  3. Step 3: Cross multiply
    201,679.60x = 302,519.40 × 191,838.10
  4. Step 4: Simplify right side
    201,679.60x = 58,034,746,909.14
  5. Step 5: Solve for x
    x = 58,034,746,909.14/201,679.60
  6. Step 6: Final answer
    x = 287,757.15

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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.