Home / 278,413.45-384,210.55-151,089.04

Finding the Fourth Proportional to 278,413.45, 384,210.55 and 151,089.04

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Solution

The fourth proportional to 278,413.45, 384,210.55 and 151,089.04 is: 208,502.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,413.45 : 384,210.55 = 151,089.04 : x
  2. Step 2: Convert to fraction form
    278,413.45/384,210.55 = 151,089.04/x
  3. Step 3: Cross multiply
    278,413.45x = 384,210.55 × 151,089.04
  4. Step 4: Simplify right side
    278,413.45x = 58,050,003,157.37
  5. Step 5: Solve for x
    x = 58,050,003,157.37/278,413.45
  6. Step 6: Final answer
    x = 208,502.87

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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.