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Finding the Fourth Proportional to 359,268.80, 538,903.20 and 303,972.80

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Solution

The fourth proportional to 359,268.80, 538,903.20 and 303,972.80 is: 455,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,268.80 : 538,903.20 = 303,972.80 : x
  2. Step 2: Convert to fraction form
    359,268.80/538,903.20 = 303,972.80/x
  3. Step 3: Cross multiply
    359,268.80x = 538,903.20 × 303,972.80
  4. Step 4: Simplify right side
    359,268.80x = 163,811,914,632.96
  5. Step 5: Solve for x
    x = 163,811,914,632.96/359,268.80
  6. Step 6: Final answer
    x = 455,959.20

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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.