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Finding the Fourth Proportional to 615.51, 850.37 and 476.19

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Solution

The fourth proportional to 615.51, 850.37 and 476.19 is: 657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.51 : 850.37 = 476.19 : x
  2. Step 2: Convert to fraction form
    615.51/850.37 = 476.19/x
  3. Step 3: Cross multiply
    615.51x = 850.37 × 476.19
  4. Step 4: Simplify right side
    615.51x = 404,935.31
  5. Step 5: Solve for x
    x = 404,935.31/615.51
  6. Step 6: Final answer
    x = 657.89

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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.