Home / 278,653.52-384,544.68-151,331.60

Finding the Fourth Proportional to 278,653.52, 384,544.68 and 151,331.60

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Solution

The fourth proportional to 278,653.52, 384,544.68 and 151,331.60 is: 208,839.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,653.52 : 384,544.68 = 151,331.60 : x
  2. Step 2: Convert to fraction form
    278,653.52/384,544.68 = 151,331.60/x
  3. Step 3: Cross multiply
    278,653.52x = 384,544.68 × 151,331.60
  4. Step 4: Simplify right side
    278,653.52x = 58,193,761,695.89
  5. Step 5: Solve for x
    x = 58,193,761,695.89/278,653.52
  6. Step 6: Final answer
    x = 208,839.14

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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.