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Finding the Fourth Proportional to 247,978.56, 342,212.40 and 134,801.04

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Solution

The fourth proportional to 247,978.56, 342,212.40 and 134,801.04 is: 186,026.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,978.56 : 342,212.40 = 134,801.04 : x
  2. Step 2: Convert to fraction form
    247,978.56/342,212.40 = 134,801.04/x
  3. Step 3: Cross multiply
    247,978.56x = 342,212.40 × 134,801.04
  4. Step 4: Simplify right side
    247,978.56x = 46,130,587,420.90
  5. Step 5: Solve for x
    x = 46,130,587,420.90/247,978.56
  6. Step 6: Final answer
    x = 186,026.52

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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.