Home / 278,450.70-384,263.10-151,126.44

Finding the Fourth Proportional to 278,450.70, 384,263.10 and 151,126.44

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Solution

The fourth proportional to 278,450.70, 384,263.10 and 151,126.44 is: 208,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,450.70 : 384,263.10 = 151,126.44 : x
  2. Step 2: Convert to fraction form
    278,450.70/384,263.10 = 151,126.44/x
  3. Step 3: Cross multiply
    278,450.70x = 384,263.10 × 151,126.44
  4. Step 4: Simplify right side
    278,450.70x = 58,072,314,326.36
  5. Step 5: Solve for x
    x = 58,072,314,326.36/278,450.70
  6. Step 6: Final answer
    x = 208,555.10

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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.