Home / 445,475.20-668,277.60-145,904.80

Finding the Fourth Proportional to 445,475.20, 668,277.60 and 145,904.80

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Solution

The fourth proportional to 445,475.20, 668,277.60 and 145,904.80 is: 218,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,475.20 : 668,277.60 = 145,904.80 : x
  2. Step 2: Convert to fraction form
    445,475.20/668,277.60 = 145,904.80/x
  3. Step 3: Cross multiply
    445,475.20x = 668,277.60 × 145,904.80
  4. Step 4: Simplify right side
    445,475.20x = 97,504,909,572.48
  5. Step 5: Solve for x
    x = 97,504,909,572.48/445,475.20
  6. Step 6: Final answer
    x = 218,878.42

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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.