Home / 380,381.07-569,665.98-220,119.16

Finding the Fourth Proportional to 380,381.07, 569,665.98 and 220,119.16

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Solution

The fourth proportional to 380,381.07, 569,665.98 and 220,119.16 is: 329,654.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,381.07 : 569,665.98 = 220,119.16 : x
  2. Step 2: Convert to fraction form
    380,381.07/569,665.98 = 220,119.16/x
  3. Step 3: Cross multiply
    380,381.07x = 569,665.98 × 220,119.16
  4. Step 4: Simplify right side
    380,381.07x = 125,394,396,998.18
  5. Step 5: Solve for x
    x = 125,394,396,998.18/380,381.07
  6. Step 6: Final answer
    x = 329,654.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.