Home / 211,025.28-291,242.61-120,360.46

Finding the Fourth Proportional to 211,025.28, 291,242.61 and 120,360.46

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Solution

The fourth proportional to 211,025.28, 291,242.61 and 120,360.46 is: 166,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,025.28 : 291,242.61 = 120,360.46 : x
  2. Step 2: Convert to fraction form
    211,025.28/291,242.61 = 120,360.46/x
  3. Step 3: Cross multiply
    211,025.28x = 291,242.61 × 120,360.46
  4. Step 4: Simplify right side
    211,025.28x = 35,054,093,848.57
  5. Step 5: Solve for x
    x = 35,054,093,848.57/211,025.28
  6. Step 6: Final answer
    x = 166,113.25

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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.