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Finding the Fourth Proportional to 314,247.87, 471,399.60 and 89,603.49

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Solution

The fourth proportional to 314,247.87, 471,399.60 and 89,603.49 is: 134,413.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,247.87 : 471,399.60 = 89,603.49 : x
  2. Step 2: Convert to fraction form
    314,247.87/471,399.60 = 89,603.49/x
  3. Step 3: Cross multiply
    314,247.87x = 471,399.60 × 89,603.49
  4. Step 4: Simplify right side
    314,247.87x = 42,239,049,344.60
  5. Step 5: Solve for x
    x = 42,239,049,344.60/314,247.87
  6. Step 6: Final answer
    x = 134,413.16

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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.