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Finding the Fourth Proportional to 266,779.40, 368,204.82 and 171,405.32

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Solution

The fourth proportional to 266,779.40, 368,204.82 and 171,405.32 is: 236,570.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,779.40 : 368,204.82 = 171,405.32 : x
  2. Step 2: Convert to fraction form
    266,779.40/368,204.82 = 171,405.32/x
  3. Step 3: Cross multiply
    266,779.40x = 368,204.82 × 171,405.32
  4. Step 4: Simplify right side
    266,779.40x = 63,112,264,997.64
  5. Step 5: Solve for x
    x = 63,112,264,997.64/266,779.40
  6. Step 6: Final answer
    x = 236,570.98

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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.