Home / 445,928.40-668,892.60-146,455.20

Finding the Fourth Proportional to 445,928.40, 668,892.60 and 146,455.20

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Solution

The fourth proportional to 445,928.40, 668,892.60 and 146,455.20 is: 219,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,928.40 : 668,892.60 = 146,455.20 : x
  2. Step 2: Convert to fraction form
    445,928.40/668,892.60 = 146,455.20/x
  3. Step 3: Cross multiply
    445,928.40x = 668,892.60 × 146,455.20
  4. Step 4: Simplify right side
    445,928.40x = 97,962,799,511.52
  5. Step 5: Solve for x
    x = 97,962,799,511.52/445,928.40
  6. Step 6: Final answer
    x = 219,682.80

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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.