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Finding the Fourth Proportional to 208,420.60, 287,461.75 and 179,398.36

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Solution

The fourth proportional to 208,420.60, 287,461.75 and 179,398.36 is: 247,433.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,420.60 : 287,461.75 = 179,398.36 : x
  2. Step 2: Convert to fraction form
    208,420.60/287,461.75 = 179,398.36/x
  3. Step 3: Cross multiply
    208,420.60x = 287,461.75 × 179,398.36
  4. Step 4: Simplify right side
    208,420.60x = 51,570,166,512.73
  5. Step 5: Solve for x
    x = 51,570,166,512.73/208,420.60
  6. Step 6: Final answer
    x = 247,433.15

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1.5x scale

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.