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Finding the Fourth Proportional to 253,864.40, 380,537.40 and 148,629.20

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Solution

The fourth proportional to 253,864.40, 380,537.40 and 148,629.20 is: 222,792.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,864.40 : 380,537.40 = 148,629.20 : x
  2. Step 2: Convert to fraction form
    253,864.40/380,537.40 = 148,629.20/x
  3. Step 3: Cross multiply
    253,864.40x = 380,537.40 × 148,629.20
  4. Step 4: Simplify right side
    253,864.40x = 56,558,969,332.08
  5. Step 5: Solve for x
    x = 56,558,969,332.08/253,864.40
  6. Step 6: Final answer
    x = 222,792.05

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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.