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Finding the Fourth Proportional to 305,410.84, 421,452.73 and 169,443.34

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Solution

The fourth proportional to 305,410.84, 421,452.73 and 169,443.34 is: 233,823.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,410.84 : 421,452.73 = 169,443.34 : x
  2. Step 2: Convert to fraction form
    305,410.84/421,452.73 = 169,443.34/x
  3. Step 3: Cross multiply
    305,410.84x = 421,452.73 × 169,443.34
  4. Step 4: Simplify right side
    305,410.84x = 71,412,358,223.32
  5. Step 5: Solve for x
    x = 71,412,358,223.32/305,410.84
  6. Step 6: Final answer
    x = 233,823.91

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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.