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Finding the Fourth Proportional to 270,293.90, 373,042.60 and 155,570.15

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Solution

The fourth proportional to 270,293.90, 373,042.60 and 155,570.15 is: 214,708.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,293.90 : 373,042.60 = 155,570.15 : x
  2. Step 2: Convert to fraction form
    270,293.90/373,042.60 = 155,570.15/x
  3. Step 3: Cross multiply
    270,293.90x = 373,042.60 × 155,570.15
  4. Step 4: Simplify right side
    270,293.90x = 58,034,293,782.07
  5. Step 5: Solve for x
    x = 58,034,293,782.07/270,293.90
  6. Step 6: Final answer
    x = 214,708.12

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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.