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Finding the Fourth Proportional to 375,575.55, 562,969.67 and 138,767.19

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Solution

The fourth proportional to 375,575.55, 562,969.67 and 138,767.19 is: 208,005.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,575.55 : 562,969.67 = 138,767.19 : x
  2. Step 2: Convert to fraction form
    375,575.55/562,969.67 = 138,767.19/x
  3. Step 3: Cross multiply
    375,575.55x = 562,969.67 × 138,767.19
  4. Step 4: Simplify right side
    375,575.55x = 78,121,718,467.29
  5. Step 5: Solve for x
    x = 78,121,718,467.29/375,575.55
  6. Step 6: Final answer
    x = 208,005.34

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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.