Home / 403,413.28-605,185.59-119,132.58

Finding the Fourth Proportional to 403,413.28, 605,185.59 and 119,132.58

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Solution

The fourth proportional to 403,413.28, 605,185.59 and 119,132.58 is: 178,718.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,413.28 : 605,185.59 = 119,132.58 : x
  2. Step 2: Convert to fraction form
    403,413.28/605,185.59 = 119,132.58/x
  3. Step 3: Cross multiply
    403,413.28x = 605,185.59 × 119,132.58
  4. Step 4: Simplify right side
    403,413.28x = 72,097,319,758.25
  5. Step 5: Solve for x
    x = 72,097,319,758.25/403,413.28
  6. Step 6: Final answer
    x = 178,718.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.