Home / 330,241.08-455,287.86-215,292.36

Finding the Fourth Proportional to 330,241.08, 455,287.86 and 215,292.36

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Solution

The fourth proportional to 330,241.08, 455,287.86 and 215,292.36 is: 296,813.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,241.08 : 455,287.86 = 215,292.36 : x
  2. Step 2: Convert to fraction form
    330,241.08/455,287.86 = 215,292.36/x
  3. Step 3: Cross multiply
    330,241.08x = 455,287.86 × 215,292.36
  4. Step 4: Simplify right side
    330,241.08x = 98,019,997,858.75
  5. Step 5: Solve for x
    x = 98,019,997,858.75/330,241.08
  6. Step 6: Final answer
    x = 296,813.46

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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.