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Finding the Fourth Proportional to 172,479.95, 237,992.72 and 158,527.87

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Solution

The fourth proportional to 172,479.95, 237,992.72 and 158,527.87 is: 218,741.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,479.95 : 237,992.72 = 158,527.87 : x
  2. Step 2: Convert to fraction form
    172,479.95/237,992.72 = 158,527.87/x
  3. Step 3: Cross multiply
    172,479.95x = 237,992.72 × 158,527.87
  4. Step 4: Simplify right side
    172,479.95x = 37,728,477,589.49
  5. Step 5: Solve for x
    x = 37,728,477,589.49/172,479.95
  6. Step 6: Final answer
    x = 218,741.24

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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.