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Finding the Fourth Proportional to 608.12, 839.13 and 346.10

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Solution

The fourth proportional to 608.12, 839.13 and 346.10 is: 477.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.12 : 839.13 = 346.10 : x
  2. Step 2: Convert to fraction form
    608.12/839.13 = 346.10/x
  3. Step 3: Cross multiply
    608.12x = 839.13 × 346.10
  4. Step 4: Simplify right side
    608.12x = 290,422.89
  5. Step 5: Solve for x
    x = 290,422.89/608.12
  6. Step 6: Final answer
    x = 477.57

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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.