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Finding the Fourth Proportional to 209,850.60, 314,848.80 and 91,606.80

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Solution

The fourth proportional to 209,850.60, 314,848.80 and 91,606.80 is: 137,442.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,850.60 : 314,848.80 = 91,606.80 : x
  2. Step 2: Convert to fraction form
    209,850.60/314,848.80 = 91,606.80/x
  3. Step 3: Cross multiply
    209,850.60x = 314,848.80 × 91,606.80
  4. Step 4: Simplify right side
    209,850.60x = 28,842,291,051.84
  5. Step 5: Solve for x
    x = 28,842,291,051.84/209,850.60
  6. Step 6: Final answer
    x = 137,442.02

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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.