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Finding the Fourth Proportional to 383,880.18, 529,924.52 and 247,980.39

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Solution

The fourth proportional to 383,880.18, 529,924.52 and 247,980.39 is: 342,322.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,880.18 : 529,924.52 = 247,980.39 : x
  2. Step 2: Convert to fraction form
    383,880.18/529,924.52 = 247,980.39/x
  3. Step 3: Cross multiply
    383,880.18x = 529,924.52 × 247,980.39
  4. Step 4: Simplify right side
    383,880.18x = 131,410,887,900.26
  5. Step 5: Solve for x
    x = 131,410,887,900.26/383,880.18
  6. Step 6: Final answer
    x = 342,322.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.