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Finding the Fourth Proportional to 251,841.83, 347,485.47 and 211,170.47

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Solution

The fourth proportional to 251,841.83, 347,485.47 and 211,170.47 is: 291,368.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,841.83 : 347,485.47 = 211,170.47 : x
  2. Step 2: Convert to fraction form
    251,841.83/347,485.47 = 211,170.47/x
  3. Step 3: Cross multiply
    251,841.83x = 347,485.47 × 211,170.47
  4. Step 4: Simplify right side
    251,841.83x = 73,378,670,018.07
  5. Step 5: Solve for x
    x = 73,378,670,018.07/251,841.83
  6. Step 6: Final answer
    x = 291,368.08

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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.