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Finding the Fourth Proportional to 907.08, 1,360.62 and 248.95

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Solution

The fourth proportional to 907.08, 1,360.62 and 248.95 is: 373.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.08 : 1,360.62 = 248.95 : x
  2. Step 2: Convert to fraction form
    907.08/1,360.62 = 248.95/x
  3. Step 3: Cross multiply
    907.08x = 1,360.62 × 248.95
  4. Step 4: Simplify right side
    907.08x = 338,726.35
  5. Step 5: Solve for x
    x = 338,726.35/907.08
  6. Step 6: Final answer
    x = 373.43

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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.