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Finding the Fourth Proportional to 208,718.04, 287,814.40 and 178,603.04

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Solution

The fourth proportional to 208,718.04, 287,814.40 and 178,603.04 is: 246,286.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,718.04 : 287,814.40 = 178,603.04 : x
  2. Step 2: Convert to fraction form
    208,718.04/287,814.40 = 178,603.04/x
  3. Step 3: Cross multiply
    208,718.04x = 287,814.40 × 178,603.04
  4. Step 4: Simplify right side
    208,718.04x = 51,404,526,795.78
  5. Step 5: Solve for x
    x = 51,404,526,795.78/208,718.04
  6. Step 6: Final answer
    x = 246,286.94

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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.