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Finding the Fourth Proportional to 383,477.76, 529,201.08 and 222,428.16

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Solution

The fourth proportional to 383,477.76, 529,201.08 and 222,428.16 is: 306,951.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,477.76 : 529,201.08 = 222,428.16 : x
  2. Step 2: Convert to fraction form
    383,477.76/529,201.08 = 222,428.16/x
  3. Step 3: Cross multiply
    383,477.76x = 529,201.08 × 222,428.16
  4. Step 4: Simplify right side
    383,477.76x = 117,709,222,494.41
  5. Step 5: Solve for x
    x = 117,709,222,494.41/383,477.76
  6. Step 6: Final answer
    x = 306,951.89

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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.