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Finding the Fourth Proportional to 375,246.40, 562,675.20 and 138,467.20

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Solution

The fourth proportional to 375,246.40, 562,675.20 and 138,467.20 is: 207,629.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,246.40 : 562,675.20 = 138,467.20 : x
  2. Step 2: Convert to fraction form
    375,246.40/562,675.20 = 138,467.20/x
  3. Step 3: Cross multiply
    375,246.40x = 562,675.20 × 138,467.20
  4. Step 4: Simplify right side
    375,246.40x = 77,912,059,453.44
  5. Step 5: Solve for x
    x = 77,912,059,453.44/375,246.40
  6. Step 6: Final answer
    x = 207,629.07

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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.