Home / 386,321.04-533,121.36-216,555.18

Finding the Fourth Proportional to 386,321.04, 533,121.36 and 216,555.18

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Solution

The fourth proportional to 386,321.04, 533,121.36 and 216,555.18 is: 298,845.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,321.04 : 533,121.36 = 216,555.18 : x
  2. Step 2: Convert to fraction form
    386,321.04/533,121.36 = 216,555.18/x
  3. Step 3: Cross multiply
    386,321.04x = 533,121.36 × 216,555.18
  4. Step 4: Simplify right side
    386,321.04x = 115,450,192,076.65
  5. Step 5: Solve for x
    x = 115,450,192,076.65/386,321.04
  6. Step 6: Final answer
    x = 298,845.21

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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.