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Finding the Fourth Proportional to 702.73, 1,054.73 and 356.30

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Solution

The fourth proportional to 702.73, 1,054.73 and 356.30 is: 534.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.73 : 1,054.73 = 356.30 : x
  2. Step 2: Convert to fraction form
    702.73/1,054.73 = 356.30/x
  3. Step 3: Cross multiply
    702.73x = 1,054.73 × 356.30
  4. Step 4: Simplify right side
    702.73x = 375,798.52
  5. Step 5: Solve for x
    x = 375,798.52/702.73
  6. Step 6: Final answer
    x = 534.77

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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.