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Finding the Fourth Proportional to 172,277.61, 258,416.41 and 53,958.21

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Solution

The fourth proportional to 172,277.61, 258,416.41 and 53,958.21 is: 80,937.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,277.61 : 258,416.41 = 53,958.21 : x
  2. Step 2: Convert to fraction form
    172,277.61/258,416.41 = 53,958.21/x
  3. Step 3: Cross multiply
    172,277.61x = 258,416.41 × 53,958.21
  4. Step 4: Simplify right side
    172,277.61x = 13,943,686,918.23
  5. Step 5: Solve for x
    x = 13,943,686,918.23/172,277.61
  6. Step 6: Final answer
    x = 80,937.31

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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.