Home / 278,467.09-384,284.97-151,142.74

Finding the Fourth Proportional to 278,467.09, 384,284.97 and 151,142.74

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Solution

The fourth proportional to 278,467.09, 384,284.97 and 151,142.74 is: 208,577.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,467.09 : 384,284.97 = 151,142.74 : x
  2. Step 2: Convert to fraction form
    278,467.09/384,284.97 = 151,142.74/x
  3. Step 3: Cross multiply
    278,467.09x = 384,284.97 × 151,142.74
  4. Step 4: Simplify right side
    278,467.09x = 58,081,883,306.62
  5. Step 5: Solve for x
    x = 58,081,883,306.62/278,467.09
  6. Step 6: Final answer
    x = 208,577.19

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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.