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Finding the Fourth Proportional to 388,465.88, 536,233.38 and 303,610.28

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Solution

The fourth proportional to 388,465.88, 536,233.38 and 303,610.28 is: 419,099.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,465.88 : 536,233.38 = 303,610.28 : x
  2. Step 2: Convert to fraction form
    388,465.88/536,233.38 = 303,610.28/x
  3. Step 3: Cross multiply
    388,465.88x = 536,233.38 × 303,610.28
  4. Step 4: Simplify right side
    388,465.88x = 162,805,966,647.15
  5. Step 5: Solve for x
    x = 162,805,966,647.15/388,465.88
  6. Step 6: Final answer
    x = 419,099.78

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1.5x scale

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.