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Finding the Fourth Proportional to 469,860.17, 648,401.64 and 255,000.38

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Solution

The fourth proportional to 469,860.17, 648,401.64 and 255,000.38 is: 351,897.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,860.17 : 648,401.64 = 255,000.38 : x
  2. Step 2: Convert to fraction form
    469,860.17/648,401.64 = 255,000.38/x
  3. Step 3: Cross multiply
    469,860.17x = 648,401.64 × 255,000.38
  4. Step 4: Simplify right side
    469,860.17x = 165,342,664,592.62
  5. Step 5: Solve for x
    x = 165,342,664,592.62/469,860.17
  6. Step 6: Final answer
    x = 351,897.60

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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.