Home / 377,121.06-520,436.22-207,355.17

Finding the Fourth Proportional to 377,121.06, 520,436.22 and 207,355.17

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Solution

The fourth proportional to 377,121.06, 520,436.22 and 207,355.17 is: 286,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,121.06 : 520,436.22 = 207,355.17 : x
  2. Step 2: Convert to fraction form
    377,121.06/520,436.22 = 207,355.17/x
  3. Step 3: Cross multiply
    377,121.06x = 520,436.22 × 207,355.17
  4. Step 4: Simplify right side
    377,121.06x = 107,915,140,872.26
  5. Step 5: Solve for x
    x = 107,915,140,872.26/377,121.06
  6. Step 6: Final answer
    x = 286,155.17

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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.