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Finding the Fourth Proportional to 315,024.51, 434,716.72 and 179,039.58

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Solution

The fourth proportional to 315,024.51, 434,716.72 and 179,039.58 is: 247,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,024.51 : 434,716.72 = 179,039.58 : x
  2. Step 2: Convert to fraction form
    315,024.51/434,716.72 = 179,039.58/x
  3. Step 3: Cross multiply
    315,024.51x = 434,716.72 × 179,039.58
  4. Step 4: Simplify right side
    315,024.51x = 77,831,499,191.58
  5. Step 5: Solve for x
    x = 77,831,499,191.58/315,024.51
  6. Step 6: Final answer
    x = 247,064.90

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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.