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Finding the Fourth Proportional to 695.25, 1,041.59 and 348.19

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Solution

The fourth proportional to 695.25, 1,041.59 and 348.19 is: 521.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.25 : 1,041.59 = 348.19 : x
  2. Step 2: Convert to fraction form
    695.25/1,041.59 = 348.19/x
  3. Step 3: Cross multiply
    695.25x = 1,041.59 × 348.19
  4. Step 4: Simplify right side
    695.25x = 362,669.49
  5. Step 5: Solve for x
    x = 362,669.49/695.25
  6. Step 6: Final answer
    x = 521.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.