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Finding the Fourth Proportional to 234,413.84, 323,489.80 and 126,985.97

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Solution

The fourth proportional to 234,413.84, 323,489.80 and 126,985.97 is: 175,239.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,413.84 : 323,489.80 = 126,985.97 : x
  2. Step 2: Convert to fraction form
    234,413.84/323,489.80 = 126,985.97/x
  3. Step 3: Cross multiply
    234,413.84x = 323,489.80 × 126,985.97
  4. Step 4: Simplify right side
    234,413.84x = 41,078,666,038.11
  5. Step 5: Solve for x
    x = 41,078,666,038.11/234,413.84
  6. Step 6: Final answer
    x = 175,239.93

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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.