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Finding the Fourth Proportional to 272,964.84, 376,772.58 and 172,429.80

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Solution

The fourth proportional to 272,964.84, 376,772.58 and 172,429.80 is: 238,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,964.84 : 376,772.58 = 172,429.80 : x
  2. Step 2: Convert to fraction form
    272,964.84/376,772.58 = 172,429.80/x
  3. Step 3: Cross multiply
    272,964.84x = 376,772.58 × 172,429.80
  4. Step 4: Simplify right side
    272,964.84x = 64,966,820,614.88
  5. Step 5: Solve for x
    x = 64,966,820,614.88/272,964.84
  6. Step 6: Final answer
    x = 238,004.35

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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.