Home / 380,221.12-524,650.20-210,454.84

Finding the Fourth Proportional to 380,221.12, 524,650.20 and 210,454.84

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Solution

The fourth proportional to 380,221.12, 524,650.20 and 210,454.84 is: 290,397.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,221.12 : 524,650.20 = 210,454.84 : x
  2. Step 2: Convert to fraction form
    380,221.12/524,650.20 = 210,454.84/x
  3. Step 3: Cross multiply
    380,221.12x = 524,650.20 × 210,454.84
  4. Step 4: Simplify right side
    380,221.12x = 110,415,173,896.97
  5. Step 5: Solve for x
    x = 110,415,173,896.97/380,221.12
  6. Step 6: Final answer
    x = 290,397.27

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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.