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Finding the Fourth Proportional to 615.36, 848.62 and 475.26

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Solution

The fourth proportional to 615.36, 848.62 and 475.26 is: 655.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.36 : 848.62 = 475.26 : x
  2. Step 2: Convert to fraction form
    615.36/848.62 = 475.26/x
  3. Step 3: Cross multiply
    615.36x = 848.62 × 475.26
  4. Step 4: Simplify right side
    615.36x = 403,316.07
  5. Step 5: Solve for x
    x = 403,316.07/615.36
  6. Step 6: Final answer
    x = 655.42

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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.