Home / 305,134.07-421,109.96-169,210.67

Finding the Fourth Proportional to 305,134.07, 421,109.96 and 169,210.67

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Solution

The fourth proportional to 305,134.07, 421,109.96 and 169,210.67 is: 233,524.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,134.07 : 421,109.96 = 169,210.67 : x
  2. Step 2: Convert to fraction form
    305,134.07/421,109.96 = 169,210.67/x
  3. Step 3: Cross multiply
    305,134.07x = 421,109.96 × 169,210.67
  4. Step 4: Simplify right side
    305,134.07x = 71,256,295,523.67
  5. Step 5: Solve for x
    x = 71,256,295,523.67/305,134.07
  6. Step 6: Final answer
    x = 233,524.55

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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.