Home / 211,326.02-291,659.81-130,779.49

Finding the Fourth Proportional to 211,326.02, 291,659.81 and 130,779.49

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Solution

The fourth proportional to 211,326.02, 291,659.81 and 130,779.49 is: 180,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,326.02 : 291,659.81 = 130,779.49 : x
  2. Step 2: Convert to fraction form
    211,326.02/291,659.81 = 130,779.49/x
  3. Step 3: Cross multiply
    211,326.02x = 291,659.81 × 130,779.49
  4. Step 4: Simplify right side
    211,326.02x = 38,143,121,205.30
  5. Step 5: Solve for x
    x = 38,143,121,205.30/211,326.02
  6. Step 6: Final answer
    x = 180,494.20

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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.