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Finding the Fourth Proportional to 287,596.73, 397,600.93 and 215,852.19

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Solution

The fourth proportional to 287,596.73, 397,600.93 and 215,852.19 is: 298,414.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,596.73 : 397,600.93 = 215,852.19 : x
  2. Step 2: Convert to fraction form
    287,596.73/397,600.93 = 215,852.19/x
  3. Step 3: Cross multiply
    287,596.73x = 397,600.93 × 215,852.19
  4. Step 4: Simplify right side
    287,596.73x = 85,823,031,894.77
  5. Step 5: Solve for x
    x = 85,823,031,894.77/287,596.73
  6. Step 6: Final answer
    x = 298,414.49

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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.