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Finding the Fourth Proportional to 401,515.39, 602,276.37 and 131,639.59

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Solution

The fourth proportional to 401,515.39, 602,276.37 and 131,639.59 is: 197,460.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,515.39 : 602,276.37 = 131,639.59 : x
  2. Step 2: Convert to fraction form
    401,515.39/602,276.37 = 131,639.59/x
  3. Step 3: Cross multiply
    401,515.39x = 602,276.37 × 131,639.59
  4. Step 4: Simplify right side
    401,515.39x = 79,283,414,413.49
  5. Step 5: Solve for x
    x = 79,283,414,413.49/401,515.39
  6. Step 6: Final answer
    x = 197,460.46

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1.5x scale

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.