Home / 211,817.38-292,234.89-135,381.22

Finding the Fourth Proportional to 211,817.38, 292,234.89 and 135,381.22

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Solution

The fourth proportional to 211,817.38, 292,234.89 and 135,381.22 is: 186,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,817.38 : 292,234.89 = 135,381.22 : x
  2. Step 2: Convert to fraction form
    211,817.38/292,234.89 = 135,381.22/x
  3. Step 3: Cross multiply
    211,817.38x = 292,234.89 × 135,381.22
  4. Step 4: Simplify right side
    211,817.38x = 39,563,114,473.59
  5. Step 5: Solve for x
    x = 39,563,114,473.59/211,817.38
  6. Step 6: Final answer
    x = 186,779.36

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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.