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Finding the Fourth Proportional to 293,465.88, 405,079.38 and 172,602

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Solution

The fourth proportional to 293,465.88, 405,079.38 and 172,602 is: 238,247.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,465.88 : 405,079.38 = 172,602 : x
  2. Step 2: Convert to fraction form
    293,465.88/405,079.38 = 172,602/x
  3. Step 3: Cross multiply
    293,465.88x = 405,079.38 × 172,602
  4. Step 4: Simplify right side
    293,465.88x = 69,917,511,146.76
  5. Step 5: Solve for x
    x = 69,917,511,146.76/293,465.88
  6. Step 6: Final answer
    x = 238,247.50

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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.