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Finding the Fourth Proportional to 400,131.40, 599,390.70 and 249,910.60

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Solution

The fourth proportional to 400,131.40, 599,390.70 and 249,910.60 is: 374,362.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,131.40 : 599,390.70 = 249,910.60 : x
  2. Step 2: Convert to fraction form
    400,131.40/599,390.70 = 249,910.60/x
  3. Step 3: Cross multiply
    400,131.40x = 599,390.70 × 249,910.60
  4. Step 4: Simplify right side
    400,131.40x = 149,794,089,471.42
  5. Step 5: Solve for x
    x = 149,794,089,471.42/400,131.40
  6. Step 6: Final answer
    x = 374,362.25

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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.