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Finding the Fourth Proportional to 370,205.60, 554,530.80 and 203,799.20

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Solution

The fourth proportional to 370,205.60, 554,530.80 and 203,799.20 is: 305,270.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,205.60 : 554,530.80 = 203,799.20 : x
  2. Step 2: Convert to fraction form
    370,205.60/554,530.80 = 203,799.20/x
  3. Step 3: Cross multiply
    370,205.60x = 554,530.80 × 203,799.20
  4. Step 4: Simplify right side
    370,205.60x = 113,012,933,415.36
  5. Step 5: Solve for x
    x = 113,012,933,415.36/370,205.60
  6. Step 6: Final answer
    x = 305,270.73

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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.