Home / 285,252.96-393,663.60-157,942.56

Finding the Fourth Proportional to 285,252.96, 393,663.60 and 157,942.56

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Solution

The fourth proportional to 285,252.96, 393,663.60 and 157,942.56 is: 217,968.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,252.96 : 393,663.60 = 157,942.56 : x
  2. Step 2: Convert to fraction form
    285,252.96/393,663.60 = 157,942.56/x
  3. Step 3: Cross multiply
    285,252.96x = 393,663.60 × 157,942.56
  4. Step 4: Simplify right side
    285,252.96x = 62,176,236,762.82
  5. Step 5: Solve for x
    x = 62,176,236,762.82/285,252.96
  6. Step 6: Final answer
    x = 217,968.77

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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.