Home / 319,398.03-479,429.35-235,253.21

Finding the Fourth Proportional to 319,398.03, 479,429.35 and 235,253.21

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Solution

The fourth proportional to 319,398.03, 479,429.35 and 235,253.21 is: 353,124.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,398.03 : 479,429.35 = 235,253.21 : x
  2. Step 2: Convert to fraction form
    319,398.03/479,429.35 = 235,253.21/x
  3. Step 3: Cross multiply
    319,398.03x = 479,429.35 × 235,253.21
  4. Step 4: Simplify right side
    319,398.03x = 112,787,290,570.43
  5. Step 5: Solve for x
    x = 112,787,290,570.43/319,398.03
  6. Step 6: Final answer
    x = 353,124.57

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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.