Home / 305,204.07-421,095.72-240,472.62

Finding the Fourth Proportional to 305,204.07, 421,095.72 and 240,472.62

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Solution

The fourth proportional to 305,204.07, 421,095.72 and 240,472.62 is: 331,784.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,204.07 : 421,095.72 = 240,472.62 : x
  2. Step 2: Convert to fraction form
    305,204.07/421,095.72 = 240,472.62/x
  3. Step 3: Cross multiply
    305,204.07x = 421,095.72 × 240,472.62
  4. Step 4: Simplify right side
    305,204.07x = 101,261,991,059.19
  5. Step 5: Solve for x
    x = 101,261,991,059.19/305,204.07
  6. Step 6: Final answer
    x = 331,784.54

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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.