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Finding the Fourth Proportional to 318,902, 440,084.76 and 175,661.60

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Solution

The fourth proportional to 318,902, 440,084.76 and 175,661.60 is: 242,413.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,902 : 440,084.76 = 175,661.60 : x
  2. Step 2: Convert to fraction form
    318,902/440,084.76 = 175,661.60/x
  3. Step 3: Cross multiply
    318,902x = 440,084.76 × 175,661.60
  4. Step 4: Simplify right side
    318,902x = 77,305,993,077.22
  5. Step 5: Solve for x
    x = 77,305,993,077.22/318,902
  6. Step 6: Final answer
    x = 242,413.01

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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.