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Finding the Fourth Proportional to 247,121.60, 370,682.40 and 147,394.40

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Solution

The fourth proportional to 247,121.60, 370,682.40 and 147,394.40 is: 221,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,121.60 : 370,682.40 = 147,394.40 : x
  2. Step 2: Convert to fraction form
    247,121.60/370,682.40 = 147,394.40/x
  3. Step 3: Cross multiply
    247,121.60x = 370,682.40 × 147,394.40
  4. Step 4: Simplify right side
    247,121.60x = 54,636,509,938.56
  5. Step 5: Solve for x
    x = 54,636,509,938.56/247,121.60
  6. Step 6: Final answer
    x = 221,091.60

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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.