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Finding the Fourth Proportional to 315,056.49, 434,803.86 and 179,133.27

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Solution

The fourth proportional to 315,056.49, 434,803.86 and 179,133.27 is: 247,218.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,056.49 : 434,803.86 = 179,133.27 : x
  2. Step 2: Convert to fraction form
    315,056.49/434,803.86 = 179,133.27/x
  3. Step 3: Cross multiply
    315,056.49x = 434,803.86 × 179,133.27
  4. Step 4: Simplify right side
    315,056.49x = 77,887,837,250.42
  5. Step 5: Solve for x
    x = 77,887,837,250.42/315,056.49
  6. Step 6: Final answer
    x = 247,218.64

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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.