Home / 397,753.20-548,895.72-216,465.36

Finding the Fourth Proportional to 397,753.20, 548,895.72 and 216,465.36

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Solution

The fourth proportional to 397,753.20, 548,895.72 and 216,465.36 is: 298,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,753.20 : 548,895.72 = 216,465.36 : x
  2. Step 2: Convert to fraction form
    397,753.20/548,895.72 = 216,465.36/x
  3. Step 3: Cross multiply
    397,753.20x = 548,895.72 × 216,465.36
  4. Step 4: Simplify right side
    397,753.20x = 118,816,909,632.26
  5. Step 5: Solve for x
    x = 118,816,909,632.26/397,753.20
  6. Step 6: Final answer
    x = 298,720.19

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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.