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Finding the Fourth Proportional to 342,450.20, 472,713.75 and 306,577.94

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Solution

The fourth proportional to 342,450.20, 472,713.75 and 306,577.94 is: 423,196.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,450.20 : 472,713.75 = 306,577.94 : x
  2. Step 2: Convert to fraction form
    342,450.20/472,713.75 = 306,577.94/x
  3. Step 3: Cross multiply
    342,450.20x = 472,713.75 × 306,577.94
  4. Step 4: Simplify right side
    342,450.20x = 144,923,605,321.11
  5. Step 5: Solve for x
    x = 144,923,605,321.11/342,450.20
  6. Step 6: Final answer
    x = 423,196.14

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1.5x scale

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.