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Finding the Fourth Proportional to 370,841.60, 556,132.80 and 193,289.60

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Solution

The fourth proportional to 370,841.60, 556,132.80 and 193,289.60 is: 289,866.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,841.60 : 556,132.80 = 193,289.60 : x
  2. Step 2: Convert to fraction form
    370,841.60/556,132.80 = 193,289.60/x
  3. Step 3: Cross multiply
    370,841.60x = 556,132.80 × 193,289.60
  4. Step 4: Simplify right side
    370,841.60x = 107,494,686,458.88
  5. Step 5: Solve for x
    x = 107,494,686,458.88/370,841.60
  6. Step 6: Final answer
    x = 289,866.85

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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.