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Finding the Fourth Proportional to 243,236, 364,554.48 and 172,733.60

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Solution

The fourth proportional to 243,236, 364,554.48 and 172,733.60 is: 258,887.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,236 : 364,554.48 = 172,733.60 : x
  2. Step 2: Convert to fraction form
    243,236/364,554.48 = 172,733.60/x
  3. Step 3: Cross multiply
    243,236x = 364,554.48 × 172,733.60
  4. Step 4: Simplify right side
    243,236x = 62,970,807,726.53
  5. Step 5: Solve for x
    x = 62,970,807,726.53/243,236
  6. Step 6: Final answer
    x = 258,887.70

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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.