Home / 290,905.07-401,498.30-168,379.70

Finding the Fourth Proportional to 290,905.07, 401,498.30 and 168,379.70

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Solution

The fourth proportional to 290,905.07, 401,498.30 and 168,379.70 is: 232,392.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,905.07 : 401,498.30 = 168,379.70 : x
  2. Step 2: Convert to fraction form
    290,905.07/401,498.30 = 168,379.70/x
  3. Step 3: Cross multiply
    290,905.07x = 401,498.30 × 168,379.70
  4. Step 4: Simplify right side
    290,905.07x = 67,604,162,462.61
  5. Step 5: Solve for x
    x = 67,604,162,462.61/290,905.07
  6. Step 6: Final answer
    x = 232,392.52

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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.