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Finding the Fourth Proportional to 368,484.76, 508,570.86 and 213,413.32

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Solution

The fourth proportional to 368,484.76, 508,570.86 and 213,413.32 is: 294,546.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,484.76 : 508,570.86 = 213,413.32 : x
  2. Step 2: Convert to fraction form
    368,484.76/508,570.86 = 213,413.32/x
  3. Step 3: Cross multiply
    368,484.76x = 508,570.86 × 213,413.32
  4. Step 4: Simplify right side
    368,484.76x = 108,535,795,687.86
  5. Step 5: Solve for x
    x = 108,535,795,687.86/368,484.76
  6. Step 6: Final answer
    x = 294,546.23

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1.5x scale

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.