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Finding the Fourth Proportional to 253,008.12, 349,137.56 and 139,824.12

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Solution

The fourth proportional to 253,008.12, 349,137.56 and 139,824.12 is: 192,949.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,008.12 : 349,137.56 = 139,824.12 : x
  2. Step 2: Convert to fraction form
    253,008.12/349,137.56 = 139,824.12/x
  3. Step 3: Cross multiply
    253,008.12x = 349,137.56 × 139,824.12
  4. Step 4: Simplify right side
    253,008.12x = 48,817,852,085.95
  5. Step 5: Solve for x
    x = 48,817,852,085.95/253,008.12
  6. Step 6: Final answer
    x = 192,949.74

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.