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Finding the Fourth Proportional to 364,039.40, 545,913.30 and 127,260.20

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Solution

The fourth proportional to 364,039.40, 545,913.30 and 127,260.20 is: 190,839.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,039.40 : 545,913.30 = 127,260.20 : x
  2. Step 2: Convert to fraction form
    364,039.40/545,913.30 = 127,260.20/x
  3. Step 3: Cross multiply
    364,039.40x = 545,913.30 × 127,260.20
  4. Step 4: Simplify right side
    364,039.40x = 69,473,035,740.66
  5. Step 5: Solve for x
    x = 69,473,035,740.66/364,039.40
  6. Step 6: Final answer
    x = 190,839.33

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.