Home / 379,488.24-523,679.18-218,395.04

Finding the Fourth Proportional to 379,488.24, 523,679.18 and 218,395.04

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Solution

The fourth proportional to 379,488.24, 523,679.18 and 218,395.04 is: 301,376.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,488.24 : 523,679.18 = 218,395.04 : x
  2. Step 2: Convert to fraction form
    379,488.24/523,679.18 = 218,395.04/x
  3. Step 3: Cross multiply
    379,488.24x = 523,679.18 × 218,395.04
  4. Step 4: Simplify right side
    379,488.24x = 114,368,931,752.90
  5. Step 5: Solve for x
    x = 114,368,931,752.90/379,488.24
  6. Step 6: Final answer
    x = 301,376.75

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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.