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Finding the Fourth Proportional to 319,530.02, 440,636.43 and 247,883.90

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Solution

The fourth proportional to 319,530.02, 440,636.43 and 247,883.90 is: 341,835.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,530.02 : 440,636.43 = 247,883.90 : x
  2. Step 2: Convert to fraction form
    319,530.02/440,636.43 = 247,883.90/x
  3. Step 3: Cross multiply
    319,530.02x = 440,636.43 × 247,883.90
  4. Step 4: Simplify right side
    319,530.02x = 109,226,676,750.48
  5. Step 5: Solve for x
    x = 109,226,676,750.48/319,530.02
  6. Step 6: Final answer
    x = 341,835.41

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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.