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Finding the Fourth Proportional to 286,392.51, 395,210.61 and 159,076.17

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Solution

The fourth proportional to 286,392.51, 395,210.61 and 159,076.17 is: 219,518.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,392.51 : 395,210.61 = 159,076.17 : x
  2. Step 2: Convert to fraction form
    286,392.51/395,210.61 = 159,076.17/x
  3. Step 3: Cross multiply
    286,392.51x = 395,210.61 × 159,076.17
  4. Step 4: Simplify right side
    286,392.51x = 62,868,590,182.16
  5. Step 5: Solve for x
    x = 62,868,590,182.16/286,392.51
  6. Step 6: Final answer
    x = 219,518.97

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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.