Home / 211,322.46-291,654.87-130,775.93

Finding the Fourth Proportional to 211,322.46, 291,654.87 and 130,775.93

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Solution

The fourth proportional to 211,322.46, 291,654.87 and 130,775.93 is: 180,489.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,322.46 : 291,654.87 = 130,775.93 : x
  2. Step 2: Convert to fraction form
    211,322.46/291,654.87 = 130,775.93/x
  3. Step 3: Cross multiply
    211,322.46x = 291,654.87 × 130,775.93
  4. Step 4: Simplify right side
    211,322.46x = 38,141,436,863.28
  5. Step 5: Solve for x
    x = 38,141,436,863.28/211,322.46
  6. Step 6: Final answer
    x = 180,489.27

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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.