Home / 248,145-371,921.04-90,287.52

Finding the Fourth Proportional to 248,145, 371,921.04 and 90,287.52

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Solution

The fourth proportional to 248,145, 371,921.04 and 90,287.52 is: 135,323.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,145 : 371,921.04 = 90,287.52 : x
  2. Step 2: Convert to fraction form
    248,145/371,921.04 = 90,287.52/x
  3. Step 3: Cross multiply
    248,145x = 371,921.04 × 90,287.52
  4. Step 4: Simplify right side
    248,145x = 33,579,828,337.42
  5. Step 5: Solve for x
    x = 33,579,828,337.42/248,145
  6. Step 6: Final answer
    x = 135,323.41

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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.