Home / 270,021.21-372,674.75-156,909.57

Finding the Fourth Proportional to 270,021.21, 372,674.75 and 156,909.57

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Solution

The fourth proportional to 270,021.21, 372,674.75 and 156,909.57 is: 216,561.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,021.21 : 372,674.75 = 156,909.57 : x
  2. Step 2: Convert to fraction form
    270,021.21/372,674.75 = 156,909.57/x
  3. Step 3: Cross multiply
    270,021.21x = 372,674.75 × 156,909.57
  4. Step 4: Simplify right side
    270,021.21x = 58,476,234,772.36
  5. Step 5: Solve for x
    x = 58,476,234,772.36/270,021.21
  6. Step 6: Final answer
    x = 216,561.64

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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.