Home / 278,413.47-384,210.86-151,089.06

Finding the Fourth Proportional to 278,413.47, 384,210.86 and 151,089.06

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Solution

The fourth proportional to 278,413.47, 384,210.86 and 151,089.06 is: 208,503.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,413.47 : 384,210.86 = 151,089.06 : x
  2. Step 2: Convert to fraction form
    278,413.47/384,210.86 = 151,089.06/x
  3. Step 3: Cross multiply
    278,413.47x = 384,210.86 × 151,089.06
  4. Step 4: Simplify right side
    278,413.47x = 58,050,058,364.54
  5. Step 5: Solve for x
    x = 58,050,058,364.54/278,413.47
  6. Step 6: Final answer
    x = 208,503.05

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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.