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Finding the Fourth Proportional to 362,119.40, 499,728.08 and 218,975.12

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Solution

The fourth proportional to 362,119.40, 499,728.08 and 218,975.12 is: 302,187.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,119.40 : 499,728.08 = 218,975.12 : x
  2. Step 2: Convert to fraction form
    362,119.40/499,728.08 = 218,975.12/x
  3. Step 3: Cross multiply
    362,119.40x = 499,728.08 × 218,975.12
  4. Step 4: Simplify right side
    362,119.40x = 109,428,016,285.37
  5. Step 5: Solve for x
    x = 109,428,016,285.37/362,119.40
  6. Step 6: Final answer
    x = 302,187.67

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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.