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Finding the Fourth Proportional to 253,645.02, 350,036.46 and 138,929.94

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Solution

The fourth proportional to 253,645.02, 350,036.46 and 138,929.94 is: 191,726.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,645.02 : 350,036.46 = 138,929.94 : x
  2. Step 2: Convert to fraction form
    253,645.02/350,036.46 = 138,929.94/x
  3. Step 3: Cross multiply
    253,645.02x = 350,036.46 × 138,929.94
  4. Step 4: Simplify right side
    253,645.02x = 48,630,544,385.61
  5. Step 5: Solve for x
    x = 48,630,544,385.61/253,645.02
  6. Step 6: Final answer
    x = 191,726.79

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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.