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Finding the Fourth Proportional to 449,838.27, 620,676.81 and 258,851.67

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Solution

The fourth proportional to 449,838.27, 620,676.81 and 258,851.67 is: 357,157.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,838.27 : 620,676.81 = 258,851.67 : x
  2. Step 2: Convert to fraction form
    449,838.27/620,676.81 = 258,851.67/x
  3. Step 3: Cross multiply
    449,838.27x = 620,676.81 × 258,851.67
  4. Step 4: Simplify right side
    449,838.27x = 160,663,228,798.77
  5. Step 5: Solve for x
    x = 160,663,228,798.77/449,838.27
  6. Step 6: Final answer
    x = 357,157.76

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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.