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Finding the Fourth Proportional to 201,872.40, 302,549.40 and 154,892.40

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Solution

The fourth proportional to 201,872.40, 302,549.40 and 154,892.40 is: 232,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,872.40 : 302,549.40 = 154,892.40 : x
  2. Step 2: Convert to fraction form
    201,872.40/302,549.40 = 154,892.40/x
  3. Step 3: Cross multiply
    201,872.40x = 302,549.40 × 154,892.40
  4. Step 4: Simplify right side
    201,872.40x = 46,862,602,684.56
  5. Step 5: Solve for x
    x = 46,862,602,684.56/201,872.40
  6. Step 6: Final answer
    x = 232,139.72

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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.