Home / 380,829.45-525,524.40-219,674.88

Finding the Fourth Proportional to 380,829.45, 525,524.40 and 219,674.88

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Solution

The fourth proportional to 380,829.45, 525,524.40 and 219,674.88 is: 303,139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,829.45 : 525,524.40 = 219,674.88 : x
  2. Step 2: Convert to fraction form
    380,829.45/525,524.40 = 219,674.88/x
  3. Step 3: Cross multiply
    380,829.45x = 525,524.40 × 219,674.88
  4. Step 4: Simplify right side
    380,829.45x = 115,444,509,507.07
  5. Step 5: Solve for x
    x = 115,444,509,507.07/380,829.45
  6. Step 6: Final answer
    x = 303,139.66

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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.