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Finding the Fourth Proportional to 278,393.91, 384,348.60 and 183,065.01

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Solution

The fourth proportional to 278,393.91, 384,348.60 and 183,065.01 is: 252,738.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,393.91 : 384,348.60 = 183,065.01 : x
  2. Step 2: Convert to fraction form
    278,393.91/384,348.60 = 183,065.01/x
  3. Step 3: Cross multiply
    278,393.91x = 384,348.60 × 183,065.01
  4. Step 4: Simplify right side
    278,393.91x = 70,360,780,302.49
  5. Step 5: Solve for x
    x = 70,360,780,302.49/278,393.91
  6. Step 6: Final answer
    x = 252,738.22

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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.