Home / 291,923.31-438,081.50-102,385.44

Finding the Fourth Proportional to 291,923.31, 438,081.50 and 102,385.44

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Solution

The fourth proportional to 291,923.31, 438,081.50 and 102,385.44 is: 153,647.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,923.31 : 438,081.50 = 102,385.44 : x
  2. Step 2: Convert to fraction form
    291,923.31/438,081.50 = 102,385.44/x
  3. Step 3: Cross multiply
    291,923.31x = 438,081.50 × 102,385.44
  4. Step 4: Simplify right side
    291,923.31x = 44,853,167,133.36
  5. Step 5: Solve for x
    x = 44,853,167,133.36/291,923.31
  6. Step 6: Final answer
    x = 153,647.09

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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.