Home / 348,438.30-521,335.71-206,359.62

Finding the Fourth Proportional to 348,438.30, 521,335.71 and 206,359.62

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Solution

The fourth proportional to 348,438.30, 521,335.71 and 206,359.62 is: 308,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,438.30 : 521,335.71 = 206,359.62 : x
  2. Step 2: Convert to fraction form
    348,438.30/521,335.71 = 206,359.62/x
  3. Step 3: Cross multiply
    348,438.30x = 521,335.71 × 206,359.62
  4. Step 4: Simplify right side
    348,438.30x = 107,582,639,008.03
  5. Step 5: Solve for x
    x = 107,582,639,008.03/348,438.30
  6. Step 6: Final answer
    x = 308,756.64

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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.