Home / 215,756.36-297,753.92-120,263.76

Finding the Fourth Proportional to 215,756.36, 297,753.92 and 120,263.76

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Solution

The fourth proportional to 215,756.36, 297,753.92 and 120,263.76 is: 165,969.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,756.36 : 297,753.92 = 120,263.76 : x
  2. Step 2: Convert to fraction form
    215,756.36/297,753.92 = 120,263.76/x
  3. Step 3: Cross multiply
    215,756.36x = 297,753.92 × 120,263.76
  4. Step 4: Simplify right side
    215,756.36x = 35,809,005,973.94
  5. Step 5: Solve for x
    x = 35,809,005,973.94/215,756.36
  6. Step 6: Final answer
    x = 165,969.64

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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.