Home / 469,861.15-648,408.37-255,001.21

Finding the Fourth Proportional to 469,861.15, 648,408.37 and 255,001.21

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Solution

The fourth proportional to 469,861.15, 648,408.37 and 255,001.21 is: 351,901.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,861.15 : 648,408.37 = 255,001.21 : x
  2. Step 2: Convert to fraction form
    469,861.15/648,408.37 = 255,001.21/x
  3. Step 3: Cross multiply
    469,861.15x = 648,408.37 × 255,001.21
  4. Step 4: Simplify right side
    469,861.15x = 165,344,918,924.13
  5. Step 5: Solve for x
    x = 165,344,918,924.13/469,861.15
  6. Step 6: Final answer
    x = 351,901.66

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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.