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Finding the Fourth Proportional to 248,570.40, 372,952.80 and 90,814.80

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Solution

The fourth proportional to 248,570.40, 372,952.80 and 90,814.80 is: 136,257.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,570.40 : 372,952.80 = 90,814.80 : x
  2. Step 2: Convert to fraction form
    248,570.40/372,952.80 = 90,814.80/x
  3. Step 3: Cross multiply
    248,570.40x = 372,952.80 × 90,814.80
  4. Step 4: Simplify right side
    248,570.40x = 33,869,633,941.44
  5. Step 5: Solve for x
    x = 33,869,633,941.44/248,570.40
  6. Step 6: Final answer
    x = 136,257.71

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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.