Home / 278,391.33-384,181.07-151,066.89

Finding the Fourth Proportional to 278,391.33, 384,181.07 and 151,066.89

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Solution

The fourth proportional to 278,391.33, 384,181.07 and 151,066.89 is: 208,472.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,391.33 : 384,181.07 = 151,066.89 : x
  2. Step 2: Convert to fraction form
    278,391.33/384,181.07 = 151,066.89/x
  3. Step 3: Cross multiply
    278,391.33x = 384,181.07 × 151,066.89
  4. Step 4: Simplify right side
    278,391.33x = 58,037,038,686.44
  5. Step 5: Solve for x
    x = 58,037,038,686.44/278,391.33
  6. Step 6: Final answer
    x = 208,472.87

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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.