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Finding the Fourth Proportional to 253,135.82, 349,334.43 and 139,962.62

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Solution

The fourth proportional to 253,135.82, 349,334.43 and 139,962.62 is: 193,152.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,135.82 : 349,334.43 = 139,962.62 : x
  2. Step 2: Convert to fraction form
    253,135.82/349,334.43 = 139,962.62/x
  3. Step 3: Cross multiply
    253,135.82x = 349,334.43 × 139,962.62
  4. Step 4: Simplify right side
    253,135.82x = 48,893,762,079.01
  5. Step 5: Solve for x
    x = 48,893,762,079.01/253,135.82
  6. Step 6: Final answer
    x = 193,152.29

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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.