Home / 335,930.40-503,895.60-99,280.80

Finding the Fourth Proportional to 335,930.40, 503,895.60 and 99,280.80

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Solution

The fourth proportional to 335,930.40, 503,895.60 and 99,280.80 is: 148,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,930.40 : 503,895.60 = 99,280.80 : x
  2. Step 2: Convert to fraction form
    335,930.40/503,895.60 = 99,280.80/x
  3. Step 3: Cross multiply
    335,930.40x = 503,895.60 × 99,280.80
  4. Step 4: Simplify right side
    335,930.40x = 50,027,158,284.48
  5. Step 5: Solve for x
    x = 50,027,158,284.48/335,930.40
  6. Step 6: Final answer
    x = 148,921.20

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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.