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Finding the Fourth Proportional to 369,181.36, 509,470.50 and 199,415.50

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Solution

The fourth proportional to 369,181.36, 509,470.50 and 199,415.50 is: 275,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,181.36 : 509,470.50 = 199,415.50 : x
  2. Step 2: Convert to fraction form
    369,181.36/509,470.50 = 199,415.50/x
  3. Step 3: Cross multiply
    369,181.36x = 509,470.50 × 199,415.50
  4. Step 4: Simplify right side
    369,181.36x = 101,596,314,492.75
  5. Step 5: Solve for x
    x = 101,596,314,492.75/369,181.36
  6. Step 6: Final answer
    x = 275,193.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.