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Finding the Fourth Proportional to 342,054.48, 472,168.36 and 306,182.46

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Solution

The fourth proportional to 342,054.48, 472,168.36 and 306,182.46 is: 422,651.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,054.48 : 472,168.36 = 306,182.46 : x
  2. Step 2: Convert to fraction form
    342,054.48/472,168.36 = 306,182.46/x
  3. Step 3: Cross multiply
    342,054.48x = 472,168.36 × 306,182.46
  4. Step 4: Simplify right side
    342,054.48x = 144,569,669,998.97
  5. Step 5: Solve for x
    x = 144,569,669,998.97/342,054.48
  6. Step 6: Final answer
    x = 422,651.01

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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.