Home / 278,454.01-384,175.07-157,583.29

Finding the Fourth Proportional to 278,454.01, 384,175.07 and 157,583.29

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Solution

The fourth proportional to 278,454.01, 384,175.07 and 157,583.29 is: 217,413.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,454.01 : 384,175.07 = 157,583.29 : x
  2. Step 2: Convert to fraction form
    278,454.01/384,175.07 = 157,583.29/x
  3. Step 3: Cross multiply
    278,454.01x = 384,175.07 × 157,583.29
  4. Step 4: Simplify right side
    278,454.01x = 60,539,570,678.66
  5. Step 5: Solve for x
    x = 60,539,570,678.66/278,454.01
  6. Step 6: Final answer
    x = 217,413.18

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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.