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Finding the Fourth Proportional to 143,597.16, 215,395.68 and 38,413.40

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Solution

The fourth proportional to 143,597.16, 215,395.68 and 38,413.40 is: 57,620.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,597.16 : 215,395.68 = 38,413.40 : x
  2. Step 2: Convert to fraction form
    143,597.16/215,395.68 = 38,413.40/x
  3. Step 3: Cross multiply
    143,597.16x = 215,395.68 × 38,413.40
  4. Step 4: Simplify right side
    143,597.16x = 8,274,080,414.11
  5. Step 5: Solve for x
    x = 8,274,080,414.11/143,597.16
  6. Step 6: Final answer
    x = 57,620.08

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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.