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Finding the Fourth Proportional to 253,504.25, 380,630.19 and 141,403.49

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Solution

The fourth proportional to 253,504.25, 380,630.19 and 141,403.49 is: 212,313.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,504.25 : 380,630.19 = 141,403.49 : x
  2. Step 2: Convert to fraction form
    253,504.25/380,630.19 = 141,403.49/x
  3. Step 3: Cross multiply
    253,504.25x = 380,630.19 × 141,403.49
  4. Step 4: Simplify right side
    253,504.25x = 53,822,437,265.36
  5. Step 5: Solve for x
    x = 53,822,437,265.36/253,504.25
  6. Step 6: Final answer
    x = 212,313.75

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1.5x scale

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.