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Finding the Fourth Proportional to 366,989.30, 550,483.95 and 320,333.30

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Solution

The fourth proportional to 366,989.30, 550,483.95 and 320,333.30 is: 480,499.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,989.30 : 550,483.95 = 320,333.30 : x
  2. Step 2: Convert to fraction form
    366,989.30/550,483.95 = 320,333.30/x
  3. Step 3: Cross multiply
    366,989.30x = 550,483.95 × 320,333.30
  4. Step 4: Simplify right side
    366,989.30x = 176,338,340,300.54
  5. Step 5: Solve for x
    x = 176,338,340,300.54/366,989.30
  6. Step 6: Final answer
    x = 480,499.95

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1.5x scale

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.