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Finding the Fourth Proportional to 201,066.80, 301,513.80 and 101,188.40

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Solution

The fourth proportional to 201,066.80, 301,513.80 and 101,188.40 is: 151,739.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,066.80 : 301,513.80 = 101,188.40 : x
  2. Step 2: Convert to fraction form
    201,066.80/301,513.80 = 101,188.40/x
  3. Step 3: Cross multiply
    201,066.80x = 301,513.80 × 101,188.40
  4. Step 4: Simplify right side
    201,066.80x = 30,509,698,999.92
  5. Step 5: Solve for x
    x = 30,509,698,999.92/201,066.80
  6. Step 6: Final answer
    x = 151,739.12

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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.