Home / 553,211.64-829,438.38-198,217.80

Finding the Fourth Proportional to 553,211.64, 829,438.38 and 198,217.80

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Solution

The fourth proportional to 553,211.64, 829,438.38 and 198,217.80 is: 297,190.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,211.64 : 829,438.38 = 198,217.80 : x
  2. Step 2: Convert to fraction form
    553,211.64/829,438.38 = 198,217.80/x
  3. Step 3: Cross multiply
    553,211.64x = 829,438.38 × 198,217.80
  4. Step 4: Simplify right side
    553,211.64x = 164,409,450,919.16
  5. Step 5: Solve for x
    x = 164,409,450,919.16/553,211.64
  6. Step 6: Final answer
    x = 297,190.87

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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.