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Finding the Fourth Proportional to 210,906.52, 291,051.02 and 115,413.22

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Solution

The fourth proportional to 210,906.52, 291,051.02 and 115,413.22 is: 159,270.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,906.52 : 291,051.02 = 115,413.22 : x
  2. Step 2: Convert to fraction form
    210,906.52/291,051.02 = 115,413.22/x
  3. Step 3: Cross multiply
    210,906.52x = 291,051.02 × 115,413.22
  4. Step 4: Simplify right side
    210,906.52x = 33,591,133,370.16
  5. Step 5: Solve for x
    x = 33,591,133,370.16/210,906.52
  6. Step 6: Final answer
    x = 159,270.25

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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.