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Finding the Fourth Proportional to 288,662.40, 432,993.60 and 183,945.60

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Solution

The fourth proportional to 288,662.40, 432,993.60 and 183,945.60 is: 275,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,662.40 : 432,993.60 = 183,945.60 : x
  2. Step 2: Convert to fraction form
    288,662.40/432,993.60 = 183,945.60/x
  3. Step 3: Cross multiply
    288,662.40x = 432,993.60 × 183,945.60
  4. Step 4: Simplify right side
    288,662.40x = 79,647,267,548.16
  5. Step 5: Solve for x
    x = 79,647,267,548.16/288,662.40
  6. Step 6: Final answer
    x = 275,918.40

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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.