Home / 329,479.04-494,294.40-139,945.41

Finding the Fourth Proportional to 329,479.04, 494,294.40 and 139,945.41

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Solution

The fourth proportional to 329,479.04, 494,294.40 and 139,945.41 is: 209,950.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,479.04 : 494,294.40 = 139,945.41 : x
  2. Step 2: Convert to fraction form
    329,479.04/494,294.40 = 139,945.41/x
  3. Step 3: Cross multiply
    329,479.04x = 494,294.40 × 139,945.41
  4. Step 4: Simplify right side
    329,479.04x = 69,174,232,468.70
  5. Step 5: Solve for x
    x = 69,174,232,468.70/329,479.04
  6. Step 6: Final answer
    x = 209,950.33

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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.