Home / 303,630.20-455,445.30-93,278.60

Finding the Fourth Proportional to 303,630.20, 455,445.30 and 93,278.60

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Solution

The fourth proportional to 303,630.20, 455,445.30 and 93,278.60 is: 139,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,630.20 : 455,445.30 = 93,278.60 : x
  2. Step 2: Convert to fraction form
    303,630.20/455,445.30 = 93,278.60/x
  3. Step 3: Cross multiply
    303,630.20x = 455,445.30 × 93,278.60
  4. Step 4: Simplify right side
    303,630.20x = 42,483,299,960.58
  5. Step 5: Solve for x
    x = 42,483,299,960.58/303,630.20
  6. Step 6: Final answer
    x = 139,917.90

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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.