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Finding the Fourth Proportional to 240,647.98, 332,128.96 and 138,653.89

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Solution

The fourth proportional to 240,647.98, 332,128.96 and 138,653.89 is: 191,362.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,647.98 : 332,128.96 = 138,653.89 : x
  2. Step 2: Convert to fraction form
    240,647.98/332,128.96 = 138,653.89/x
  3. Step 3: Cross multiply
    240,647.98x = 332,128.96 × 138,653.89
  4. Step 4: Simplify right side
    240,647.98x = 46,050,972,976.92
  5. Step 5: Solve for x
    x = 46,050,972,976.92/240,647.98
  6. Step 6: Final answer
    x = 191,362.39

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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.