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Finding the Fourth Proportional to 295,066.60, 442,089.60 and 136,970.80

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Solution

The fourth proportional to 295,066.60, 442,089.60 and 136,970.80 is: 205,219.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,066.60 : 442,089.60 = 136,970.80 : x
  2. Step 2: Convert to fraction form
    295,066.60/442,089.60 = 136,970.80/x
  3. Step 3: Cross multiply
    295,066.60x = 442,089.60 × 136,970.80
  4. Step 4: Simplify right side
    295,066.60x = 60,553,366,183.68
  5. Step 5: Solve for x
    x = 60,553,366,183.68/295,066.60
  6. Step 6: Final answer
    x = 205,219.32

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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.