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Finding the Fourth Proportional to 442,911.60, 664,367.40 and 162,392.40

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Solution

The fourth proportional to 442,911.60, 664,367.40 and 162,392.40 is: 243,588.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,911.60 : 664,367.40 = 162,392.40 : x
  2. Step 2: Convert to fraction form
    442,911.60/664,367.40 = 162,392.40/x
  3. Step 3: Cross multiply
    442,911.60x = 664,367.40 × 162,392.40
  4. Step 4: Simplify right side
    442,911.60x = 107,888,216,567.76
  5. Step 5: Solve for x
    x = 107,888,216,567.76/442,911.60
  6. Step 6: Final answer
    x = 243,588.60

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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.