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Finding the Fourth Proportional to 366,985.30, 550,477.95 and 320,329.30

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Solution

The fourth proportional to 366,985.30, 550,477.95 and 320,329.30 is: 480,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,985.30 : 550,477.95 = 320,329.30 : x
  2. Step 2: Convert to fraction form
    366,985.30/550,477.95 = 320,329.30/x
  3. Step 3: Cross multiply
    366,985.30x = 550,477.95 × 320,329.30
  4. Step 4: Simplify right side
    366,985.30x = 176,334,216,388.94
  5. Step 5: Solve for x
    x = 176,334,216,388.94/366,985.30
  6. Step 6: Final answer
    x = 480,493.95

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Similar ratio
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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.