Home / 340,938.81-470,381.34-220,161.73

Finding the Fourth Proportional to 340,938.81, 470,381.34 and 220,161.73

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Solution

The fourth proportional to 340,938.81, 470,381.34 and 220,161.73 is: 303,749.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,938.81 : 470,381.34 = 220,161.73 : x
  2. Step 2: Convert to fraction form
    340,938.81/470,381.34 = 220,161.73/x
  3. Step 3: Cross multiply
    340,938.81x = 470,381.34 × 220,161.73
  4. Step 4: Simplify right side
    340,938.81x = 103,559,969,574.12
  5. Step 5: Solve for x
    x = 103,559,969,574.12/340,938.81
  6. Step 6: Final answer
    x = 303,749.43

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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.