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Finding the Fourth Proportional to 375,572.96, 562,965.77 and 138,764.60

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Solution

The fourth proportional to 375,572.96, 562,965.77 and 138,764.60 is: 208,001.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,572.96 : 562,965.77 = 138,764.60 : x
  2. Step 2: Convert to fraction form
    375,572.96/562,965.77 = 138,764.60/x
  3. Step 3: Cross multiply
    375,572.96x = 562,965.77 × 138,764.60
  4. Step 4: Simplify right side
    375,572.96x = 78,119,716,379.09
  5. Step 5: Solve for x
    x = 78,119,716,379.09/375,572.96
  6. Step 6: Final answer
    x = 208,001.44

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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.