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Finding the Fourth Proportional to 285,169.88, 393,376.80 and 183,210.53

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Solution

The fourth proportional to 285,169.88, 393,376.80 and 183,210.53 is: 252,729.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,169.88 : 393,376.80 = 183,210.53 : x
  2. Step 2: Convert to fraction form
    285,169.88/393,376.80 = 183,210.53/x
  3. Step 3: Cross multiply
    285,169.88x = 393,376.80 × 183,210.53
  4. Step 4: Simplify right side
    285,169.88x = 72,070,770,737.86
  5. Step 5: Solve for x
    x = 72,070,770,737.86/285,169.88
  6. Step 6: Final answer
    x = 252,729.25

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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.