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Finding the Fourth Proportional to 278,662.37, 384,713.46 and 183,445.85

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Solution

The fourth proportional to 278,662.37, 384,713.46 and 183,445.85 is: 253,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,662.37 : 384,713.46 = 183,445.85 : x
  2. Step 2: Convert to fraction form
    278,662.37/384,713.46 = 183,445.85/x
  3. Step 3: Cross multiply
    278,662.37x = 384,713.46 × 183,445.85
  4. Step 4: Simplify right side
    278,662.37x = 70,574,085,752.57
  5. Step 5: Solve for x
    x = 70,574,085,752.57/278,662.37
  6. Step 6: Final answer
    x = 253,260.20

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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.