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Finding the Fourth Proportional to 353,859.61, 488,340.08 and 200,912.03

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Solution

The fourth proportional to 353,859.61, 488,340.08 and 200,912.03 is: 277,266.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,859.61 : 488,340.08 = 200,912.03 : x
  2. Step 2: Convert to fraction form
    353,859.61/488,340.08 = 200,912.03/x
  3. Step 3: Cross multiply
    353,859.61x = 488,340.08 × 200,912.03
  4. Step 4: Simplify right side
    353,859.61x = 98,113,395,582.31
  5. Step 5: Solve for x
    x = 98,113,395,582.31/353,859.61
  6. Step 6: Final answer
    x = 277,266.45

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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.