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Finding the Fourth Proportional to 285,059.26, 393,376.23 and 157,734.94

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Solution

The fourth proportional to 285,059.26, 393,376.23 and 157,734.94 is: 217,671.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,059.26 : 393,376.23 = 157,734.94 : x
  2. Step 2: Convert to fraction form
    285,059.26/393,376.23 = 157,734.94/x
  3. Step 3: Cross multiply
    285,059.26x = 393,376.23 × 157,734.94
  4. Step 4: Simplify right side
    285,059.26x = 62,049,176,036.48
  5. Step 5: Solve for x
    x = 62,049,176,036.48/285,059.26
  6. Step 6: Final answer
    x = 217,671.15

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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.