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Finding the Fourth Proportional to 200,403.01, 300,603.57 and 50,643.64

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Solution

The fourth proportional to 200,403.01, 300,603.57 and 50,643.64 is: 75,965.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,403.01 : 300,603.57 = 50,643.64 : x
  2. Step 2: Convert to fraction form
    200,403.01/300,603.57 = 50,643.64/x
  3. Step 3: Cross multiply
    200,403.01x = 300,603.57 × 50,643.64
  4. Step 4: Simplify right side
    200,403.01x = 15,223,658,981.79
  5. Step 5: Solve for x
    x = 15,223,658,981.79/200,403.01
  6. Step 6: Final answer
    x = 75,965.22

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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.