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Finding the Fourth Proportional to 181,271.80, 271,907.70 and 115,005.70

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Solution

The fourth proportional to 181,271.80, 271,907.70 and 115,005.70 is: 172,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,271.80 : 271,907.70 = 115,005.70 : x
  2. Step 2: Convert to fraction form
    181,271.80/271,907.70 = 115,005.70/x
  3. Step 3: Cross multiply
    181,271.80x = 271,907.70 × 115,005.70
  4. Step 4: Simplify right side
    181,271.80x = 31,270,935,373.89
  5. Step 5: Solve for x
    x = 31,270,935,373.89/181,271.80
  6. Step 6: Final answer
    x = 172,508.55

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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.