Home / 360,128.16-496,974.96-198,994.32

Finding the Fourth Proportional to 360,128.16, 496,974.96 and 198,994.32

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Solution

The fourth proportional to 360,128.16, 496,974.96 and 198,994.32 is: 274,611.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,128.16 : 496,974.96 = 198,994.32 : x
  2. Step 2: Convert to fraction form
    360,128.16/496,974.96 = 198,994.32/x
  3. Step 3: Cross multiply
    360,128.16x = 496,974.96 × 198,994.32
  4. Step 4: Simplify right side
    360,128.16x = 98,895,194,222.23
  5. Step 5: Solve for x
    x = 98,895,194,222.23/360,128.16
  6. Step 6: Final answer
    x = 274,611.11

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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.