Home / 445,913.60-668,951.40-146,310.80

Finding the Fourth Proportional to 445,913.60, 668,951.40 and 146,310.80

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Solution

The fourth proportional to 445,913.60, 668,951.40 and 146,310.80 is: 219,492.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,913.60 : 668,951.40 = 146,310.80 : x
  2. Step 2: Convert to fraction form
    445,913.60/668,951.40 = 146,310.80/x
  3. Step 3: Cross multiply
    445,913.60x = 668,951.40 × 146,310.80
  4. Step 4: Simplify right side
    445,913.60x = 97,874,814,495.12
  5. Step 5: Solve for x
    x = 97,874,814,495.12/445,913.60
  6. Step 6: Final answer
    x = 219,492.78

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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.