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Finding the Fourth Proportional to 201,117.40, 301,676.10 and 107,805.40

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Solution

The fourth proportional to 201,117.40, 301,676.10 and 107,805.40 is: 161,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,117.40 : 301,676.10 = 107,805.40 : x
  2. Step 2: Convert to fraction form
    201,117.40/301,676.10 = 107,805.40/x
  3. Step 3: Cross multiply
    201,117.40x = 301,676.10 × 107,805.40
  4. Step 4: Simplify right side
    201,117.40x = 32,522,312,630.94
  5. Step 5: Solve for x
    x = 32,522,312,630.94/201,117.40
  6. Step 6: Final answer
    x = 161,708.10

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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.