Home / 399,289.54-551,268.24-254,177.20

Finding the Fourth Proportional to 399,289.54, 551,268.24 and 254,177.20

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Solution

The fourth proportional to 399,289.54, 551,268.24 and 254,177.20 is: 350,922.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,289.54 : 551,268.24 = 254,177.20 : x
  2. Step 2: Convert to fraction form
    399,289.54/551,268.24 = 254,177.20/x
  3. Step 3: Cross multiply
    399,289.54x = 551,268.24 × 254,177.20
  4. Step 4: Simplify right side
    399,289.54x = 140,119,817,692.13
  5. Step 5: Solve for x
    x = 140,119,817,692.13/399,289.54
  6. Step 6: Final answer
    x = 350,922.84

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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.