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Finding the Fourth Proportional to 268,425.75, 370,413.30 and 147,543.78

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Solution

The fourth proportional to 268,425.75, 370,413.30 and 147,543.78 is: 203,602.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,425.75 : 370,413.30 = 147,543.78 : x
  2. Step 2: Convert to fraction form
    268,425.75/370,413.30 = 147,543.78/x
  3. Step 3: Cross multiply
    268,425.75x = 370,413.30 × 147,543.78
  4. Step 4: Simplify right side
    268,425.75x = 54,652,178,444.27
  5. Step 5: Solve for x
    x = 54,652,178,444.27/268,425.75
  6. Step 6: Final answer
    x = 203,602.59

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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.