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Finding the Fourth Proportional to 298,074.40, 447,016.76 and 98,357.56

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Solution

The fourth proportional to 298,074.40, 447,016.76 and 98,357.56 is: 147,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,074.40 : 447,016.76 = 98,357.56 : x
  2. Step 2: Convert to fraction form
    298,074.40/447,016.76 = 98,357.56/x
  3. Step 3: Cross multiply
    298,074.40x = 447,016.76 × 98,357.56
  4. Step 4: Simplify right side
    298,074.40x = 43,967,477,792.71
  5. Step 5: Solve for x
    x = 43,967,477,792.71/298,074.40
  6. Step 6: Final answer
    x = 147,505.05

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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.