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Finding the Fourth Proportional to 208,419.60, 287,460.37 and 179,397.36

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Solution

The fourth proportional to 208,419.60, 287,460.37 and 179,397.36 is: 247,431.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,419.60 : 287,460.37 = 179,397.36 : x
  2. Step 2: Convert to fraction form
    208,419.60/287,460.37 = 179,397.36/x
  3. Step 3: Cross multiply
    208,419.60x = 287,460.37 × 179,397.36
  4. Step 4: Simplify right side
    208,419.60x = 51,569,631,482.62
  5. Step 5: Solve for x
    x = 51,569,631,482.62/208,419.60
  6. Step 6: Final answer
    x = 247,431.77

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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.