Home / 248,923.20-372,931.20-143,428.80

Finding the Fourth Proportional to 248,923.20, 372,931.20 and 143,428.80

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Solution

The fourth proportional to 248,923.20, 372,931.20 and 143,428.80 is: 214,881.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,923.20 : 372,931.20 = 143,428.80 : x
  2. Step 2: Convert to fraction form
    248,923.20/372,931.20 = 143,428.80/x
  3. Step 3: Cross multiply
    248,923.20x = 372,931.20 × 143,428.80
  4. Step 4: Simplify right side
    248,923.20x = 53,489,074,498.56
  5. Step 5: Solve for x
    x = 53,489,074,498.56/248,923.20
  6. Step 6: Final answer
    x = 214,881.84

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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.