Home / 305,240.46-421,231.86-169,295.19

Finding the Fourth Proportional to 305,240.46, 421,231.86 and 169,295.19

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Solution

The fourth proportional to 305,240.46, 421,231.86 and 169,295.19 is: 233,627.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,240.46 : 421,231.86 = 169,295.19 : x
  2. Step 2: Convert to fraction form
    305,240.46/421,231.86 = 169,295.19/x
  3. Step 3: Cross multiply
    305,240.46x = 421,231.86 × 169,295.19
  4. Step 4: Simplify right side
    305,240.46x = 71,312,527,772.75
  5. Step 5: Solve for x
    x = 71,312,527,772.75/305,240.46
  6. Step 6: Final answer
    x = 233,627.38

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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.