Home / 277,105.23-415,681.11-77,427.59

Finding the Fourth Proportional to 277,105.23, 415,681.11 and 77,427.59

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Solution

The fourth proportional to 277,105.23, 415,681.11 and 77,427.59 is: 116,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,105.23 : 415,681.11 = 77,427.59 : x
  2. Step 2: Convert to fraction form
    277,105.23/415,681.11 = 77,427.59/x
  3. Step 3: Cross multiply
    277,105.23x = 415,681.11 × 77,427.59
  4. Step 4: Simplify right side
    277,105.23x = 32,185,184,477.42
  5. Step 5: Solve for x
    x = 32,185,184,477.42/277,105.23
  6. Step 6: Final answer
    x = 116,147.88

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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.