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Finding the Fourth Proportional to 253,514.48, 349,848.64 and 138,803.52

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Solution

The fourth proportional to 253,514.48, 349,848.64 and 138,803.52 is: 191,548.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,514.48 : 349,848.64 = 138,803.52 : x
  2. Step 2: Convert to fraction form
    253,514.48/349,848.64 = 138,803.52/x
  3. Step 3: Cross multiply
    253,514.48x = 349,848.64 × 138,803.52
  4. Step 4: Simplify right side
    253,514.48x = 48,560,222,699.21
  5. Step 5: Solve for x
    x = 48,560,222,699.21/253,514.48
  6. Step 6: Final answer
    x = 191,548.12

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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.