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Finding the Fourth Proportional to 211,241, 291,512.58 and 115,751.46

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Solution

The fourth proportional to 211,241, 291,512.58 and 115,751.46 is: 159,737.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,241 : 291,512.58 = 115,751.46 : x
  2. Step 2: Convert to fraction form
    211,241/291,512.58 = 115,751.46/x
  3. Step 3: Cross multiply
    211,241x = 291,512.58 × 115,751.46
  4. Step 4: Simplify right side
    211,241x = 33,743,006,743.37
  5. Step 5: Solve for x
    x = 33,743,006,743.37/211,241
  6. Step 6: Final answer
    x = 159,737.01

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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.