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Finding the Fourth Proportional to 201,885.40, 302,487.90 and 159,603.40

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Solution

The fourth proportional to 201,885.40, 302,487.90 and 159,603.40 is: 239,136.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,885.40 : 302,487.90 = 159,603.40 : x
  2. Step 2: Convert to fraction form
    201,885.40/302,487.90 = 159,603.40/x
  3. Step 3: Cross multiply
    201,885.40x = 302,487.90 × 159,603.40
  4. Step 4: Simplify right side
    201,885.40x = 48,278,097,298.86
  5. Step 5: Solve for x
    x = 48,278,097,298.86/201,885.40
  6. Step 6: Final answer
    x = 239,136.15

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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.