Home / 388,211.40-535,535.46-226,961.32

Finding the Fourth Proportional to 388,211.40, 535,535.46 and 226,961.32

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Solution

The fourth proportional to 388,211.40, 535,535.46 and 226,961.32 is: 313,091.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,211.40 : 535,535.46 = 226,961.32 : x
  2. Step 2: Convert to fraction form
    388,211.40/535,535.46 = 226,961.32/x
  3. Step 3: Cross multiply
    388,211.40x = 535,535.46 × 226,961.32
  4. Step 4: Simplify right side
    388,211.40x = 121,545,834,908.41
  5. Step 5: Solve for x
    x = 121,545,834,908.41/388,211.40
  6. Step 6: Final answer
    x = 313,091.87

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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.