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Finding the Fourth Proportional to 703.15, 1,054.83 and 292.06

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Solution

The fourth proportional to 703.15, 1,054.83 and 292.06 is: 438.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.15 : 1,054.83 = 292.06 : x
  2. Step 2: Convert to fraction form
    703.15/1,054.83 = 292.06/x
  3. Step 3: Cross multiply
    703.15x = 1,054.83 × 292.06
  4. Step 4: Simplify right side
    703.15x = 308,073.65
  5. Step 5: Solve for x
    x = 308,073.65/703.15
  6. Step 6: Final answer
    x = 438.13

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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.