Home / 380,277.20-524,617.80-229,290.32

Finding the Fourth Proportional to 380,277.20, 524,617.80 and 229,290.32

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Solution

The fourth proportional to 380,277.20, 524,617.80 and 229,290.32 is: 316,321.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,277.20 : 524,617.80 = 229,290.32 : x
  2. Step 2: Convert to fraction form
    380,277.20/524,617.80 = 229,290.32/x
  3. Step 3: Cross multiply
    380,277.20x = 524,617.80 × 229,290.32
  4. Step 4: Simplify right side
    380,277.20x = 120,289,783,239.70
  5. Step 5: Solve for x
    x = 120,289,783,239.70/380,277.20
  6. Step 6: Final answer
    x = 316,321.31

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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.