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Finding the Fourth Proportional to 201,897.40, 302,505.90 and 159,615.40

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Solution

The fourth proportional to 201,897.40, 302,505.90 and 159,615.40 is: 239,154.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,897.40 : 302,505.90 = 159,615.40 : x
  2. Step 2: Convert to fraction form
    201,897.40/302,505.90 = 159,615.40/x
  3. Step 3: Cross multiply
    201,897.40x = 302,505.90 × 159,615.40
  4. Step 4: Simplify right side
    201,897.40x = 48,284,600,230.86
  5. Step 5: Solve for x
    x = 48,284,600,230.86/201,897.40
  6. Step 6: Final answer
    x = 239,154.15

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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.