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Finding the Fourth Proportional to 219,580.39, 303,021.57 and 118,978.39

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Solution

The fourth proportional to 219,580.39, 303,021.57 and 118,978.39 is: 164,190.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,580.39 : 303,021.57 = 118,978.39 : x
  2. Step 2: Convert to fraction form
    219,580.39/303,021.57 = 118,978.39/x
  3. Step 3: Cross multiply
    219,580.39x = 303,021.57 × 118,978.39
  4. Step 4: Simplify right side
    219,580.39x = 36,053,018,533.87
  5. Step 5: Solve for x
    x = 36,053,018,533.87/219,580.39
  6. Step 6: Final answer
    x = 164,190.52

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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.