Home / 291,511.22-402,287.73-164,174.90

Finding the Fourth Proportional to 291,511.22, 402,287.73 and 164,174.90

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Solution

The fourth proportional to 291,511.22, 402,287.73 and 164,174.90 is: 226,562.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,511.22 : 402,287.73 = 164,174.90 : x
  2. Step 2: Convert to fraction form
    291,511.22/402,287.73 = 164,174.90/x
  3. Step 3: Cross multiply
    291,511.22x = 402,287.73 × 164,174.90
  4. Step 4: Simplify right side
    291,511.22x = 66,045,547,843.98
  5. Step 5: Solve for x
    x = 66,045,547,843.98/291,511.22
  6. Step 6: Final answer
    x = 226,562.63

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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.