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Finding the Fourth Proportional to 469,861.67, 648,403.71 and 255,001.88

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Solution

The fourth proportional to 469,861.67, 648,403.71 and 255,001.88 is: 351,899.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,861.67 : 648,403.71 = 255,001.88 : x
  2. Step 2: Convert to fraction form
    469,861.67/648,403.71 = 255,001.88/x
  3. Step 3: Cross multiply
    469,861.67x = 648,403.71 × 255,001.88
  4. Step 4: Simplify right side
    469,861.67x = 165,344,165,048.98
  5. Step 5: Solve for x
    x = 165,344,165,048.98/469,861.67
  6. Step 6: Final answer
    x = 351,899.67

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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.