Home / 285,313.74-393,732.93-157,989.33

Finding the Fourth Proportional to 285,313.74, 393,732.93 and 157,989.33

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Solution

The fourth proportional to 285,313.74, 393,732.93 and 157,989.33 is: 218,025.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,313.74 : 393,732.93 = 157,989.33 : x
  2. Step 2: Convert to fraction form
    285,313.74/393,732.93 = 157,989.33/x
  3. Step 3: Cross multiply
    285,313.74x = 393,732.93 × 157,989.33
  4. Step 4: Simplify right side
    285,313.74x = 62,205,601,809.64
  5. Step 5: Solve for x
    x = 62,205,601,809.64/285,313.74
  6. Step 6: Final answer
    x = 218,025.26

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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.