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Finding the Fourth Proportional to 219,912, 303,478.64 and 124,416.64

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Solution

The fourth proportional to 219,912, 303,478.64 and 124,416.64 is: 171,695.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,912 : 303,478.64 = 124,416.64 : x
  2. Step 2: Convert to fraction form
    219,912/303,478.64 = 124,416.64/x
  3. Step 3: Cross multiply
    219,912x = 303,478.64 × 124,416.64
  4. Step 4: Simplify right side
    219,912x = 37,757,792,700.57
  5. Step 5: Solve for x
    x = 37,757,792,700.57/219,912
  6. Step 6: Final answer
    x = 171,695.01

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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.