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Finding the Fourth Proportional to 203,349.40, 305,024.10 and 163,983.40

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Solution

The fourth proportional to 203,349.40, 305,024.10 and 163,983.40 is: 245,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,349.40 : 305,024.10 = 163,983.40 : x
  2. Step 2: Convert to fraction form
    203,349.40/305,024.10 = 163,983.40/x
  3. Step 3: Cross multiply
    203,349.40x = 305,024.10 × 163,983.40
  4. Step 4: Simplify right side
    203,349.40x = 50,018,888,999.94
  5. Step 5: Solve for x
    x = 50,018,888,999.94/203,349.40
  6. Step 6: Final answer
    x = 245,975.10

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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.