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Finding the Fourth Proportional to 253,084, 349,225.60 and 139,891.36

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Solution

The fourth proportional to 253,084, 349,225.60 and 139,891.36 is: 193,033.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,084 : 349,225.60 = 139,891.36 : x
  2. Step 2: Convert to fraction form
    253,084/349,225.60 = 139,891.36/x
  3. Step 3: Cross multiply
    253,084x = 349,225.60 × 139,891.36
  4. Step 4: Simplify right side
    253,084x = 48,853,644,130.82
  5. Step 5: Solve for x
    x = 48,853,644,130.82/253,084
  6. Step 6: Final answer
    x = 193,033.32

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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.