Home / 305,607.07-422,024.93-196,902.23

Finding the Fourth Proportional to 305,607.07, 422,024.93 and 196,902.23

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Solution

The fourth proportional to 305,607.07, 422,024.93 and 196,902.23 is: 271,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,607.07 : 422,024.93 = 196,902.23 : x
  2. Step 2: Convert to fraction form
    305,607.07/422,024.93 = 196,902.23/x
  3. Step 3: Cross multiply
    305,607.07x = 422,024.93 × 196,902.23
  4. Step 4: Simplify right side
    305,607.07x = 83,097,651,379.91
  5. Step 5: Solve for x
    x = 83,097,651,379.91/305,607.07
  6. Step 6: Final answer
    x = 271,910.11

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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.