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Finding the Fourth Proportional to 243,859.40, 365,205.90 and 197,203.40

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Solution

The fourth proportional to 243,859.40, 365,205.90 and 197,203.40 is: 295,333.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,859.40 : 365,205.90 = 197,203.40 : x
  2. Step 2: Convert to fraction form
    243,859.40/365,205.90 = 197,203.40/x
  3. Step 3: Cross multiply
    243,859.40x = 365,205.90 × 197,203.40
  4. Step 4: Simplify right side
    243,859.40x = 72,019,845,180.06
  5. Step 5: Solve for x
    x = 72,019,845,180.06/243,859.40
  6. Step 6: Final answer
    x = 295,333.48

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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.