Home / 438,204.27-657,306.41-105,780.27

Finding the Fourth Proportional to 438,204.27, 657,306.41 and 105,780.27

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Solution

The fourth proportional to 438,204.27, 657,306.41 and 105,780.27 is: 158,670.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,204.27 : 657,306.41 = 105,780.27 : x
  2. Step 2: Convert to fraction form
    438,204.27/657,306.41 = 105,780.27/x
  3. Step 3: Cross multiply
    438,204.27x = 657,306.41 × 105,780.27
  4. Step 4: Simplify right side
    438,204.27x = 69,530,048,993.63
  5. Step 5: Solve for x
    x = 69,530,048,993.63/438,204.27
  6. Step 6: Final answer
    x = 158,670.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.