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Finding the Fourth Proportional to 469,925, 648,497.15 and 255,065.11

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Solution

The fourth proportional to 469,925, 648,497.15 and 255,065.11 is: 351,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,925 : 648,497.15 = 255,065.11 : x
  2. Step 2: Convert to fraction form
    469,925/648,497.15 = 255,065.11/x
  3. Step 3: Cross multiply
    469,925x = 648,497.15 × 255,065.11
  4. Step 4: Simplify right side
    469,925x = 165,408,996,899.44
  5. Step 5: Solve for x
    x = 165,408,996,899.44/469,925
  6. Step 6: Final answer
    x = 351,990.20

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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.