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Finding the Fourth Proportional to 286,992.48, 430,488 and 136,777.44

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Solution

The fourth proportional to 286,992.48, 430,488 and 136,777.44 is: 205,165.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,992.48 : 430,488 = 136,777.44 : x
  2. Step 2: Convert to fraction form
    286,992.48/430,488 = 136,777.44/x
  3. Step 3: Cross multiply
    286,992.48x = 430,488 × 136,777.44
  4. Step 4: Simplify right side
    286,992.48x = 58,881,046,590.72
  5. Step 5: Solve for x
    x = 58,881,046,590.72/286,992.48
  6. Step 6: Final answer
    x = 205,165.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.