Home / 340,945.12-470,390.05-220,168.05

Finding the Fourth Proportional to 340,945.12, 470,390.05 and 220,168.05

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Solution

The fourth proportional to 340,945.12, 470,390.05 and 220,168.05 is: 303,758.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,945.12 : 470,390.05 = 220,168.05 : x
  2. Step 2: Convert to fraction form
    340,945.12/470,390.05 = 220,168.05/x
  3. Step 3: Cross multiply
    340,945.12x = 470,390.05 × 220,168.05
  4. Step 4: Simplify right side
    340,945.12x = 103,564,858,559.15
  5. Step 5: Solve for x
    x = 103,564,858,559.15/340,945.12
  6. Step 6: Final answer
    x = 303,758.15

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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.