Home / 215,358.12-297,188.96-118,561.20

Finding the Fourth Proportional to 215,358.12, 297,188.96 and 118,561.20

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Solution

The fourth proportional to 215,358.12, 297,188.96 and 118,561.20 is: 163,611.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,358.12 : 297,188.96 = 118,561.20 : x
  2. Step 2: Convert to fraction form
    215,358.12/297,188.96 = 118,561.20/x
  3. Step 3: Cross multiply
    215,358.12x = 297,188.96 × 118,561.20
  4. Step 4: Simplify right side
    215,358.12x = 35,235,079,724.35
  5. Step 5: Solve for x
    x = 35,235,079,724.35/215,358.12
  6. Step 6: Final answer
    x = 163,611.57

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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.