Home / 211,327.46-291,661.78-130,780.94

Finding the Fourth Proportional to 211,327.46, 291,661.78 and 130,780.94

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Solution

The fourth proportional to 211,327.46, 291,661.78 and 130,780.94 is: 180,496.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,327.46 : 291,661.78 = 130,780.94 : x
  2. Step 2: Convert to fraction form
    211,327.46/291,661.78 = 130,780.94/x
  3. Step 3: Cross multiply
    211,327.46x = 291,661.78 × 130,780.94
  4. Step 4: Simplify right side
    211,327.46x = 38,143,801,750.47
  5. Step 5: Solve for x
    x = 38,143,801,750.47/211,327.46
  6. Step 6: Final answer
    x = 180,496.19

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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.