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Finding the Fourth Proportional to 211,492.62, 291,864.37 and 115,999.09

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Solution

The fourth proportional to 211,492.62, 291,864.37 and 115,999.09 is: 160,081.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,492.62 : 291,864.37 = 115,999.09 : x
  2. Step 2: Convert to fraction form
    211,492.62/291,864.37 = 115,999.09/x
  3. Step 3: Cross multiply
    211,492.62x = 291,864.37 × 115,999.09
  4. Step 4: Simplify right side
    211,492.62x = 33,856,001,323.42
  5. Step 5: Solve for x
    x = 33,856,001,323.42/211,492.62
  6. Step 6: Final answer
    x = 160,081.24

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1.5x scale

Why These Related Problems?

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