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Finding the Fourth Proportional to 245,458.80, 367,669.80 and 203,986.80

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Solution

The fourth proportional to 245,458.80, 367,669.80 and 203,986.80 is: 305,549.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,458.80 : 367,669.80 = 203,986.80 : x
  2. Step 2: Convert to fraction form
    245,458.80/367,669.80 = 203,986.80/x
  3. Step 3: Cross multiply
    245,458.80x = 367,669.80 × 203,986.80
  4. Step 4: Simplify right side
    245,458.80x = 74,999,785,958.64
  5. Step 5: Solve for x
    x = 74,999,785,958.64/245,458.80
  6. Step 6: Final answer
    x = 305,549.39

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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.