Home / 388,610.36-536,283.51-225,298.70

Finding the Fourth Proportional to 388,610.36, 536,283.51 and 225,298.70

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Solution

The fourth proportional to 388,610.36, 536,283.51 and 225,298.70 is: 310,912.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,610.36 : 536,283.51 = 225,298.70 : x
  2. Step 2: Convert to fraction form
    388,610.36/536,283.51 = 225,298.70/x
  3. Step 3: Cross multiply
    388,610.36x = 536,283.51 × 225,298.70
  4. Step 4: Simplify right side
    388,610.36x = 120,823,977,634.44
  5. Step 5: Solve for x
    x = 120,823,977,634.44/388,610.36
  6. Step 6: Final answer
    x = 310,912.91

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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.