Home / 377,635.37-521,121.38-216,378.27

Finding the Fourth Proportional to 377,635.37, 521,121.38 and 216,378.27

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Solution

The fourth proportional to 377,635.37, 521,121.38 and 216,378.27 is: 298,593.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,635.37 : 521,121.38 = 216,378.27 : x
  2. Step 2: Convert to fraction form
    377,635.37/521,121.38 = 216,378.27/x
  3. Step 3: Cross multiply
    377,635.37x = 521,121.38 × 216,378.27
  4. Step 4: Simplify right side
    377,635.37x = 112,759,341,582.52
  5. Step 5: Solve for x
    x = 112,759,341,582.52/377,635.37
  6. Step 6: Final answer
    x = 298,593.17

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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.