Home / 445,845.60-668,849.40-146,242.80

Finding the Fourth Proportional to 445,845.60, 668,849.40 and 146,242.80

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Solution

The fourth proportional to 445,845.60, 668,849.40 and 146,242.80 is: 219,390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,845.60 : 668,849.40 = 146,242.80 : x
  2. Step 2: Convert to fraction form
    445,845.60/668,849.40 = 146,242.80/x
  3. Step 3: Cross multiply
    445,845.60x = 668,849.40 × 146,242.80
  4. Step 4: Simplify right side
    445,845.60x = 97,814,409,034.32
  5. Step 5: Solve for x
    x = 97,814,409,034.32/445,845.60
  6. Step 6: Final answer
    x = 219,390.77

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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.