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Finding the Fourth Proportional to 644,295.84, 966,368.68 and 171,017.96

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Solution

The fourth proportional to 644,295.84, 966,368.68 and 171,017.96 is: 256,507.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,295.84 : 966,368.68 = 171,017.96 : x
  2. Step 2: Convert to fraction form
    644,295.84/966,368.68 = 171,017.96/x
  3. Step 3: Cross multiply
    644,295.84x = 966,368.68 × 171,017.96
  4. Step 4: Simplify right side
    644,295.84x = 165,266,400,261.49
  5. Step 5: Solve for x
    x = 165,266,400,261.49/644,295.84
  6. Step 6: Final answer
    x = 256,507.01

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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.