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Finding the Fourth Proportional to 201,655.90, 302,629.65 and 112,815.10

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Solution

The fourth proportional to 201,655.90, 302,629.65 and 112,815.10 is: 169,304.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,655.90 : 302,629.65 = 112,815.10 : x
  2. Step 2: Convert to fraction form
    201,655.90/302,629.65 = 112,815.10/x
  3. Step 3: Cross multiply
    201,655.90x = 302,629.65 × 112,815.10
  4. Step 4: Simplify right side
    201,655.90x = 34,141,194,227.72
  5. Step 5: Solve for x
    x = 34,141,194,227.72/201,655.90
  6. Step 6: Final answer
    x = 169,304.22

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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.