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Finding the Fourth Proportional to 305,573.84, 421,685.54 and 169,599.81

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Solution

The fourth proportional to 305,573.84, 421,685.54 and 169,599.81 is: 234,044.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,573.84 : 421,685.54 = 169,599.81 : x
  2. Step 2: Convert to fraction form
    305,573.84/421,685.54 = 169,599.81/x
  3. Step 3: Cross multiply
    305,573.84x = 421,685.54 × 169,599.81
  4. Step 4: Simplify right side
    305,573.84x = 71,517,787,463.75
  5. Step 5: Solve for x
    x = 71,517,787,463.75/305,573.84
  6. Step 6: Final answer
    x = 234,044.21

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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.