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Finding the Fourth Proportional to 286,335.10, 395,160.72 and 159,010.69

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Solution

The fourth proportional to 286,335.10, 395,160.72 and 159,010.69 is: 219,444.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,335.10 : 395,160.72 = 159,010.69 : x
  2. Step 2: Convert to fraction form
    286,335.10/395,160.72 = 159,010.69/x
  3. Step 3: Cross multiply
    286,335.10x = 395,160.72 × 159,010.69
  4. Step 4: Simplify right side
    286,335.10x = 62,834,778,748.10
  5. Step 5: Solve for x
    x = 62,834,778,748.10/286,335.10
  6. Step 6: Final answer
    x = 219,444.90

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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.