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Finding the Fourth Proportional to 319,271.63, 440,596.67 and 176,029.20

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Solution

The fourth proportional to 319,271.63, 440,596.67 and 176,029.20 is: 242,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,271.63 : 440,596.67 = 176,029.20 : x
  2. Step 2: Convert to fraction form
    319,271.63/440,596.67 = 176,029.20/x
  3. Step 3: Cross multiply
    319,271.63x = 440,596.67 × 176,029.20
  4. Step 4: Simplify right side
    319,271.63x = 77,557,878,462.62
  5. Step 5: Solve for x
    x = 77,557,878,462.62/319,271.63
  6. Step 6: Final answer
    x = 242,921.30

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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.