Home / 214,890.80-322,336.20-120,412.40

Finding the Fourth Proportional to 214,890.80, 322,336.20 and 120,412.40

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Solution

The fourth proportional to 214,890.80, 322,336.20 and 120,412.40 is: 180,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,890.80 : 322,336.20 = 120,412.40 : x
  2. Step 2: Convert to fraction form
    214,890.80/322,336.20 = 120,412.40/x
  3. Step 3: Cross multiply
    214,890.80x = 322,336.20 × 120,412.40
  4. Step 4: Simplify right side
    214,890.80x = 38,813,275,448.88
  5. Step 5: Solve for x
    x = 38,813,275,448.88/214,890.80
  6. Step 6: Final answer
    x = 180,618.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.