Home / 465,021.72-641,708.08-258,303.52

Finding the Fourth Proportional to 465,021.72, 641,708.08 and 258,303.52

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Solution

The fourth proportional to 465,021.72, 641,708.08 and 258,303.52 is: 356,446.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,021.72 : 641,708.08 = 258,303.52 : x
  2. Step 2: Convert to fraction form
    465,021.72/641,708.08 = 258,303.52/x
  3. Step 3: Cross multiply
    465,021.72x = 641,708.08 × 258,303.52
  4. Step 4: Simplify right side
    465,021.72x = 165,755,455,876.44
  5. Step 5: Solve for x
    x = 165,755,455,876.44/465,021.72
  6. Step 6: Final answer
    x = 356,446.70

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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.