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Finding the Fourth Proportional to 371,425.48, 512,578.74 and 210,277.60

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Solution

The fourth proportional to 371,425.48, 512,578.74 and 210,277.60 is: 290,189.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,425.48 : 512,578.74 = 210,277.60 : x
  2. Step 2: Convert to fraction form
    371,425.48/512,578.74 = 210,277.60/x
  3. Step 3: Cross multiply
    371,425.48x = 512,578.74 × 210,277.60
  4. Step 4: Simplify right side
    371,425.48x = 107,783,827,258.22
  5. Step 5: Solve for x
    x = 107,783,827,258.22/371,425.48
  6. Step 6: Final answer
    x = 290,189.64

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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.