Home / 277,106.23-415,682.61-77,428.59

Finding the Fourth Proportional to 277,106.23, 415,682.61 and 77,428.59

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Solution

The fourth proportional to 277,106.23, 415,682.61 and 77,428.59 is: 116,149.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,106.23 : 415,682.61 = 77,428.59 : x
  2. Step 2: Convert to fraction form
    277,106.23/415,682.61 = 77,428.59/x
  3. Step 3: Cross multiply
    277,106.23x = 415,682.61 × 77,428.59
  4. Step 4: Simplify right side
    277,106.23x = 32,185,718,379.82
  5. Step 5: Solve for x
    x = 32,185,718,379.82/277,106.23
  6. Step 6: Final answer
    x = 116,149.39

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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.