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Finding the Fourth Proportional to 210,967.82, 291,135.96 and 115,480.58

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Solution

The fourth proportional to 210,967.82, 291,135.96 and 115,480.58 is: 159,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,967.82 : 291,135.96 = 115,480.58 : x
  2. Step 2: Convert to fraction form
    210,967.82/291,135.96 = 115,480.58/x
  3. Step 3: Cross multiply
    210,967.82x = 291,135.96 × 115,480.58
  4. Step 4: Simplify right side
    210,967.82x = 33,620,549,519.66
  5. Step 5: Solve for x
    x = 33,620,549,519.66/210,967.82
  6. Step 6: Final answer
    x = 159,363.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.