Home / 278,413.39-384,210.73-151,088.98

Finding the Fourth Proportional to 278,413.39, 384,210.73 and 151,088.98

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Solution

The fourth proportional to 278,413.39, 384,210.73 and 151,088.98 is: 208,502.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,413.39 : 384,210.73 = 151,088.98 : x
  2. Step 2: Convert to fraction form
    278,413.39/384,210.73 = 151,088.98/x
  3. Step 3: Cross multiply
    278,413.39x = 384,210.73 × 151,088.98
  4. Step 4: Simplify right side
    278,413.39x = 58,050,007,300.76
  5. Step 5: Solve for x
    x = 58,050,007,300.76/278,413.39
  6. Step 6: Final answer
    x = 208,502.93

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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.