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Finding the Fourth Proportional to 248,478.93, 372,721.63 and 70,991.73

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Solution

The fourth proportional to 248,478.93, 372,721.63 and 70,991.73 is: 106,488.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,478.93 : 372,721.63 = 70,991.73 : x
  2. Step 2: Convert to fraction form
    248,478.93/372,721.63 = 70,991.73/x
  3. Step 3: Cross multiply
    248,478.93x = 372,721.63 × 70,991.73
  4. Step 4: Simplify right side
    248,478.93x = 26,460,151,281.03
  5. Step 5: Solve for x
    x = 26,460,151,281.03/248,478.93
  6. Step 6: Final answer
    x = 106,488.51

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1.5x scale

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.