Home / 215,506.05-297,401.27-120,015.15

Finding the Fourth Proportional to 215,506.05, 297,401.27 and 120,015.15

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Solution

The fourth proportional to 215,506.05, 297,401.27 and 120,015.15 is: 165,622.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,506.05 : 297,401.27 = 120,015.15 : x
  2. Step 2: Convert to fraction form
    215,506.05/297,401.27 = 120,015.15/x
  3. Step 3: Cross multiply
    215,506.05x = 297,401.27 × 120,015.15
  4. Step 4: Simplify right side
    215,506.05x = 35,692,657,429.16
  5. Step 5: Solve for x
    x = 35,692,657,429.16/215,506.05
  6. Step 6: Final answer
    x = 165,622.53

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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.