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Finding the Fourth Proportional to 286,812.88, 395,826.27 and 159,513.28

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Solution

The fourth proportional to 286,812.88, 395,826.27 and 159,513.28 is: 220,141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,812.88 : 395,826.27 = 159,513.28 : x
  2. Step 2: Convert to fraction form
    286,812.88/395,826.27 = 159,513.28/x
  3. Step 3: Cross multiply
    286,812.88x = 395,826.27 × 159,513.28
  4. Step 4: Simplify right side
    286,812.88x = 63,139,546,637.87
  5. Step 5: Solve for x
    x = 63,139,546,637.87/286,812.88
  6. Step 6: Final answer
    x = 220,141.95

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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.