Home / 215,742.51-297,725.09-120,247.29

Finding the Fourth Proportional to 215,742.51, 297,725.09 and 120,247.29

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Solution

The fourth proportional to 215,742.51, 297,725.09 and 120,247.29 is: 165,941.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,742.51 : 297,725.09 = 120,247.29 : x
  2. Step 2: Convert to fraction form
    215,742.51/297,725.09 = 120,247.29/x
  3. Step 3: Cross multiply
    215,742.51x = 297,725.09 × 120,247.29
  4. Step 4: Simplify right side
    215,742.51x = 35,800,634,636.27
  5. Step 5: Solve for x
    x = 35,800,634,636.27/215,742.51
  6. Step 6: Final answer
    x = 165,941.49

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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.