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Finding the Fourth Proportional to 248,370.50, 342,751.29 and 135,194.06

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Solution

The fourth proportional to 248,370.50, 342,751.29 and 135,194.06 is: 186,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,370.50 : 342,751.29 = 135,194.06 : x
  2. Step 2: Convert to fraction form
    248,370.50/342,751.29 = 135,194.06/x
  3. Step 3: Cross multiply
    248,370.50x = 342,751.29 × 135,194.06
  4. Step 4: Simplify right side
    248,370.50x = 46,337,938,465.34
  5. Step 5: Solve for x
    x = 46,337,938,465.34/248,370.50
  6. Step 6: Final answer
    x = 186,567.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.