Home / 380,275.86-524,787.76-219,103.68

Finding the Fourth Proportional to 380,275.86, 524,787.76 and 219,103.68

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Solution

The fourth proportional to 380,275.86, 524,787.76 and 219,103.68 is: 302,367.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,275.86 : 524,787.76 = 219,103.68 : x
  2. Step 2: Convert to fraction form
    380,275.86/524,787.76 = 219,103.68/x
  3. Step 3: Cross multiply
    380,275.86x = 524,787.76 × 219,103.68
  4. Step 4: Simplify right side
    380,275.86x = 114,982,929,434.96
  5. Step 5: Solve for x
    x = 114,982,929,434.96/380,275.86
  6. Step 6: Final answer
    x = 302,367.15

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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.