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Finding the Fourth Proportional to 148,444.60, 222,806.10 and 78,374.20

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Solution

The fourth proportional to 148,444.60, 222,806.10 and 78,374.20 is: 117,634.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,444.60 : 222,806.10 = 78,374.20 : x
  2. Step 2: Convert to fraction form
    148,444.60/222,806.10 = 78,374.20/x
  3. Step 3: Cross multiply
    148,444.60x = 222,806.10 × 78,374.20
  4. Step 4: Simplify right side
    148,444.60x = 17,462,249,842.62
  5. Step 5: Solve for x
    x = 17,462,249,842.62/148,444.60
  6. Step 6: Final answer
    x = 117,634.79

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1.5x scale

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.