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Finding the Fourth Proportional to 203,548.88, 305,351.04 and 70,393.40

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Solution

The fourth proportional to 203,548.88, 305,351.04 and 70,393.40 is: 105,599.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,548.88 : 305,351.04 = 70,393.40 : x
  2. Step 2: Convert to fraction form
    203,548.88/305,351.04 = 70,393.40/x
  3. Step 3: Cross multiply
    203,548.88x = 305,351.04 × 70,393.40
  4. Step 4: Simplify right side
    203,548.88x = 21,494,697,899.14
  5. Step 5: Solve for x
    x = 21,494,697,899.14/203,548.88
  6. Step 6: Final answer
    x = 105,599.69

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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.