Home / 348,499.81-521,429.14-206,421.31

Finding the Fourth Proportional to 348,499.81, 521,429.14 and 206,421.31

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Solution

The fourth proportional to 348,499.81, 521,429.14 and 206,421.31 is: 308,849.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,499.81 : 521,429.14 = 206,421.31 : x
  2. Step 2: Convert to fraction form
    348,499.81/521,429.14 = 206,421.31/x
  3. Step 3: Cross multiply
    348,499.81x = 521,429.14 × 206,421.31
  4. Step 4: Simplify right side
    348,499.81x = 107,634,086,150.97
  5. Step 5: Solve for x
    x = 107,634,086,150.97/348,499.81
  6. Step 6: Final answer
    x = 308,849.77

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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.