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Finding the Fourth Proportional to 247,921.76, 342,130.42 and 134,744.51

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Solution

The fourth proportional to 247,921.76, 342,130.42 and 134,744.51 is: 185,946.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,921.76 : 342,130.42 = 134,744.51 : x
  2. Step 2: Convert to fraction form
    247,921.76/342,130.42 = 134,744.51/x
  3. Step 3: Cross multiply
    247,921.76x = 342,130.42 × 134,744.51
  4. Step 4: Simplify right side
    247,921.76x = 46,100,195,798.99
  5. Step 5: Solve for x
    x = 46,100,195,798.99/247,921.76
  6. Step 6: Final answer
    x = 185,946.55

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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.