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Finding the Fourth Proportional to 211,549.91, 291,958.72 and 120,888.16

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Solution

The fourth proportional to 211,549.91, 291,958.72 and 120,888.16 is: 166,837.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,549.91 : 291,958.72 = 120,888.16 : x
  2. Step 2: Convert to fraction form
    211,549.91/291,958.72 = 120,888.16/x
  3. Step 3: Cross multiply
    211,549.91x = 291,958.72 × 120,888.16
  4. Step 4: Simplify right side
    211,549.91x = 35,294,351,424.64
  5. Step 5: Solve for x
    x = 35,294,351,424.64/211,549.91
  6. Step 6: Final answer
    x = 166,837.00

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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.