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Finding the Fourth Proportional to 202,480.40, 303,720.60 and 188,656.40

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Solution

The fourth proportional to 202,480.40, 303,720.60 and 188,656.40 is: 282,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,480.40 : 303,720.60 = 188,656.40 : x
  2. Step 2: Convert to fraction form
    202,480.40/303,720.60 = 188,656.40/x
  3. Step 3: Cross multiply
    202,480.40x = 303,720.60 × 188,656.40
  4. Step 4: Simplify right side
    202,480.40x = 57,298,835,001.84
  5. Step 5: Solve for x
    x = 57,298,835,001.84/202,480.40
  6. Step 6: Final answer
    x = 282,984.60

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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.