Home / 211,321.27-291,653.25-130,774.74

Finding the Fourth Proportional to 211,321.27, 291,653.25 and 130,774.74

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Solution

The fourth proportional to 211,321.27, 291,653.25 and 130,774.74 is: 180,487.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,321.27 : 291,653.25 = 130,774.74 : x
  2. Step 2: Convert to fraction form
    211,321.27/291,653.25 = 130,774.74/x
  3. Step 3: Cross multiply
    211,321.27x = 291,653.25 × 130,774.74
  4. Step 4: Simplify right side
    211,321.27x = 38,140,877,938.91
  5. Step 5: Solve for x
    x = 38,140,877,938.91/211,321.27
  6. Step 6: Final answer
    x = 180,487.64

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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.