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Finding the Fourth Proportional to 369,321.84, 509,664.48 and 199,556.40

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Solution

The fourth proportional to 369,321.84, 509,664.48 and 199,556.40 is: 275,388.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,321.84 : 509,664.48 = 199,556.40 : x
  2. Step 2: Convert to fraction form
    369,321.84/509,664.48 = 199,556.40/x
  3. Step 3: Cross multiply
    369,321.84x = 509,664.48 × 199,556.40
  4. Step 4: Simplify right side
    369,321.84x = 101,706,808,836.67
  5. Step 5: Solve for x
    x = 101,706,808,836.67/369,321.84
  6. Step 6: Final answer
    x = 275,388.02

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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.