Home / 305,469.07-421,527.05-169,494.40

Finding the Fourth Proportional to 305,469.07, 421,527.05 and 169,494.40

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Solution

The fourth proportional to 305,469.07, 421,527.05 and 169,494.40 is: 233,891.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,469.07 : 421,527.05 = 169,494.40 : x
  2. Step 2: Convert to fraction form
    305,469.07/421,527.05 = 169,494.40/x
  3. Step 3: Cross multiply
    305,469.07x = 421,527.05 × 169,494.40
  4. Step 4: Simplify right side
    305,469.07x = 71,446,474,423.52
  5. Step 5: Solve for x
    x = 71,446,474,423.52/305,469.07
  6. Step 6: Final answer
    x = 233,891.03

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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.