Home / 211,770.81-292,380.45-131,284.35

Finding the Fourth Proportional to 211,770.81, 292,380.45 and 131,284.35

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Solution

The fourth proportional to 211,770.81, 292,380.45 and 131,284.35 is: 181,257.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,770.81 : 292,380.45 = 131,284.35 : x
  2. Step 2: Convert to fraction form
    211,770.81/292,380.45 = 131,284.35/x
  3. Step 3: Cross multiply
    211,770.81x = 292,380.45 × 131,284.35
  4. Step 4: Simplify right side
    211,770.81x = 38,384,977,330.96
  5. Step 5: Solve for x
    x = 38,384,977,330.96/211,770.81
  6. Step 6: Final answer
    x = 181,257.17

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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.