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Finding the Fourth Proportional to 248,840.80, 374,182.80 and 208,290.40

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Solution

The fourth proportional to 248,840.80, 374,182.80 and 208,290.40 is: 313,207.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,840.80 : 374,182.80 = 208,290.40 : x
  2. Step 2: Convert to fraction form
    248,840.80/374,182.80 = 208,290.40/x
  3. Step 3: Cross multiply
    248,840.80x = 374,182.80 × 208,290.40
  4. Step 4: Simplify right side
    248,840.80x = 77,938,685,085.12
  5. Step 5: Solve for x
    x = 77,938,685,085.12/248,840.80
  6. Step 6: Final answer
    x = 313,207.02

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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.