Home / 380,252.75-570,939.85-212,101.61

Finding the Fourth Proportional to 380,252.75, 570,939.85 and 212,101.61

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Solution

The fourth proportional to 380,252.75, 570,939.85 and 212,101.61 is: 318,465.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,252.75 : 570,939.85 = 212,101.61 : x
  2. Step 2: Convert to fraction form
    380,252.75/570,939.85 = 212,101.61/x
  3. Step 3: Cross multiply
    380,252.75x = 570,939.85 × 212,101.61
  4. Step 4: Simplify right side
    380,252.75x = 121,097,261,398.16
  5. Step 5: Solve for x
    x = 121,097,261,398.16/380,252.75
  6. Step 6: Final answer
    x = 318,465.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.