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Finding the Fourth Proportional to 208,293.64, 287,442.88 and 122,237.24

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Solution

The fourth proportional to 208,293.64, 287,442.88 and 122,237.24 is: 168,686.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,293.64 : 287,442.88 = 122,237.24 : x
  2. Step 2: Convert to fraction form
    208,293.64/287,442.88 = 122,237.24/x
  3. Step 3: Cross multiply
    208,293.64x = 287,442.88 × 122,237.24
  4. Step 4: Simplify right side
    208,293.64x = 35,136,223,778.69
  5. Step 5: Solve for x
    x = 35,136,223,778.69/208,293.64
  6. Step 6: Final answer
    x = 168,686.01

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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.