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Finding the Fourth Proportional to 201,878.20, 302,234.10 and 123,146.20

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Solution

The fourth proportional to 201,878.20, 302,234.10 and 123,146.20 is: 184,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,878.20 : 302,234.10 = 123,146.20 : x
  2. Step 2: Convert to fraction form
    201,878.20/302,234.10 = 123,146.20/x
  3. Step 3: Cross multiply
    201,878.20x = 302,234.10 × 123,146.20
  4. Step 4: Simplify right side
    201,878.20x = 37,218,980,925.42
  5. Step 5: Solve for x
    x = 37,218,980,925.42/201,878.20
  6. Step 6: Final answer
    x = 184,363.55

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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.