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Finding the Fourth Proportional to 253,192.05, 349,354.49 and 139,992.93

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Solution

The fourth proportional to 253,192.05, 349,354.49 and 139,992.93 is: 193,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,192.05 : 349,354.49 = 139,992.93 : x
  2. Step 2: Convert to fraction form
    253,192.05/349,354.49 = 139,992.93/x
  3. Step 3: Cross multiply
    253,192.05x = 349,354.49 × 139,992.93
  4. Step 4: Simplify right side
    253,192.05x = 48,907,157,963.79
  5. Step 5: Solve for x
    x = 48,907,157,963.79/253,192.05
  6. Step 6: Final answer
    x = 193,162.30

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1.5x scale

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.