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Finding the Fourth Proportional to 209,092.76, 288,484.44 and 118,434.32

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Solution

The fourth proportional to 209,092.76, 288,484.44 and 118,434.32 is: 163,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,092.76 : 288,484.44 = 118,434.32 : x
  2. Step 2: Convert to fraction form
    209,092.76/288,484.44 = 118,434.32/x
  3. Step 3: Cross multiply
    209,092.76x = 288,484.44 × 118,434.32
  4. Step 4: Simplify right side
    209,092.76x = 34,166,458,481.98
  5. Step 5: Solve for x
    x = 34,166,458,481.98/209,092.76
  6. Step 6: Final answer
    x = 163,403.35

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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.