Home / 211,019.96-316,561.22-61,261.50

Finding the Fourth Proportional to 211,019.96, 316,561.22 and 61,261.50

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Solution

The fourth proportional to 211,019.96, 316,561.22 and 61,261.50 is: 91,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,019.96 : 316,561.22 = 61,261.50 : x
  2. Step 2: Convert to fraction form
    211,019.96/316,561.22 = 61,261.50/x
  3. Step 3: Cross multiply
    211,019.96x = 316,561.22 × 61,261.50
  4. Step 4: Simplify right side
    211,019.96x = 19,393,015,179.03
  5. Step 5: Solve for x
    x = 19,393,015,179.03/211,019.96
  6. Step 6: Final answer
    x = 91,901.33

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1.5x scale

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.