Home / 305,210.09-421,233.51-169,274.27

Finding the Fourth Proportional to 305,210.09, 421,233.51 and 169,274.27

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Solution

The fourth proportional to 305,210.09, 421,233.51 and 169,274.27 is: 233,622.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,210.09 : 421,233.51 = 169,274.27 : x
  2. Step 2: Convert to fraction form
    305,210.09/421,233.51 = 169,274.27/x
  3. Step 3: Cross multiply
    305,210.09x = 421,233.51 × 169,274.27
  4. Step 4: Simplify right side
    305,210.09x = 71,303,996,592.65
  5. Step 5: Solve for x
    x = 71,303,996,592.65/305,210.09
  6. Step 6: Final answer
    x = 233,622.67

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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.