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Finding the Fourth Proportional to 383,624.64, 529,453.32 and 220,345.44

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Solution

The fourth proportional to 383,624.64, 529,453.32 and 220,345.44 is: 304,106.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,624.64 : 529,453.32 = 220,345.44 : x
  2. Step 2: Convert to fraction form
    383,624.64/529,453.32 = 220,345.44/x
  3. Step 3: Cross multiply
    383,624.64x = 529,453.32 × 220,345.44
  4. Step 4: Simplify right side
    383,624.64x = 116,662,624,754.86
  5. Step 5: Solve for x
    x = 116,662,624,754.86/383,624.64
  6. Step 6: Final answer
    x = 304,106.18

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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.