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Finding the Fourth Proportional to 253,508.60, 380,394.02 and 111,453.63

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Solution

The fourth proportional to 253,508.60, 380,394.02 and 111,453.63 is: 167,238.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,508.60 : 380,394.02 = 111,453.63 : x
  2. Step 2: Convert to fraction form
    253,508.60/380,394.02 = 111,453.63/x
  3. Step 3: Cross multiply
    253,508.60x = 380,394.02 × 111,453.63
  4. Step 4: Simplify right side
    253,508.60x = 42,396,293,802.02
  5. Step 5: Solve for x
    x = 42,396,293,802.02/253,508.60
  6. Step 6: Final answer
    x = 167,238.09

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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.