Home / 285,327.06-393,683.70-168,981.78

Finding the Fourth Proportional to 285,327.06, 393,683.70 and 168,981.78

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Solution

The fourth proportional to 285,327.06, 393,683.70 and 168,981.78 is: 233,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,327.06 : 393,683.70 = 168,981.78 : x
  2. Step 2: Convert to fraction form
    285,327.06/393,683.70 = 168,981.78/x
  3. Step 3: Cross multiply
    285,327.06x = 393,683.70 × 168,981.78
  4. Step 4: Simplify right side
    285,327.06x = 66,525,372,382.99
  5. Step 5: Solve for x
    x = 66,525,372,382.99/285,327.06
  6. Step 6: Final answer
    x = 233,154.80

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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.