Home / 380,836.45-525,534.06-219,681.88

Finding the Fourth Proportional to 380,836.45, 525,534.06 and 219,681.88

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Solution

The fourth proportional to 380,836.45, 525,534.06 and 219,681.88 is: 303,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,836.45 : 525,534.06 = 219,681.88 : x
  2. Step 2: Convert to fraction form
    380,836.45/525,534.06 = 219,681.88/x
  3. Step 3: Cross multiply
    380,836.45x = 525,534.06 × 219,681.88
  4. Step 4: Simplify right side
    380,836.45x = 115,450,310,304.83
  5. Step 5: Solve for x
    x = 115,450,310,304.83/380,836.45
  6. Step 6: Final answer
    x = 303,149.32

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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.