Home / 316,238.82-474,365.13-126,788.40

Finding the Fourth Proportional to 316,238.82, 474,365.13 and 126,788.40

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Solution

The fourth proportional to 316,238.82, 474,365.13 and 126,788.40 is: 190,185.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,238.82 : 474,365.13 = 126,788.40 : x
  2. Step 2: Convert to fraction form
    316,238.82/474,365.13 = 126,788.40/x
  3. Step 3: Cross multiply
    316,238.82x = 474,365.13 × 126,788.40
  4. Step 4: Simplify right side
    316,238.82x = 60,143,995,848.49
  5. Step 5: Solve for x
    x = 60,143,995,848.49/316,238.82
  6. Step 6: Final answer
    x = 190,185.37

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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.