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Finding the Fourth Proportional to 248,600.35, 372,900.53 and 90,808.30

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Solution

The fourth proportional to 248,600.35, 372,900.53 and 90,808.30 is: 136,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,600.35 : 372,900.53 = 90,808.30 : x
  2. Step 2: Convert to fraction form
    248,600.35/372,900.53 = 90,808.30/x
  3. Step 3: Cross multiply
    248,600.35x = 372,900.53 × 90,808.30
  4. Step 4: Simplify right side
    248,600.35x = 33,862,462,744.36
  5. Step 5: Solve for x
    x = 33,862,462,744.36/248,600.35
  6. Step 6: Final answer
    x = 136,212.45

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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.