Home / 211,820.68-292,204.46-135,259.28

Finding the Fourth Proportional to 211,820.68, 292,204.46 and 135,259.28

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Solution

The fourth proportional to 211,820.68, 292,204.46 and 135,259.28 is: 186,588.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,820.68 : 292,204.46 = 135,259.28 : x
  2. Step 2: Convert to fraction form
    211,820.68/292,204.46 = 135,259.28/x
  3. Step 3: Cross multiply
    211,820.68x = 292,204.46 × 135,259.28
  4. Step 4: Simplify right side
    211,820.68x = 39,523,364,872.39
  5. Step 5: Solve for x
    x = 39,523,364,872.39/211,820.68
  6. Step 6: Final answer
    x = 186,588.79

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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.