Home / 278,693.07-384,594.32-151,369.58

Finding the Fourth Proportional to 278,693.07, 384,594.32 and 151,369.58

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Solution

The fourth proportional to 278,693.07, 384,594.32 and 151,369.58 is: 208,888.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,693.07 : 384,594.32 = 151,369.58 : x
  2. Step 2: Convert to fraction form
    278,693.07/384,594.32 = 151,369.58/x
  3. Step 3: Cross multiply
    278,693.07x = 384,594.32 × 151,369.58
  4. Step 4: Simplify right side
    278,693.07x = 58,215,878,008.97
  5. Step 5: Solve for x
    x = 58,215,878,008.97/278,693.07
  6. Step 6: Final answer
    x = 208,888.86

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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.