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Finding the Fourth Proportional to 290,514.40, 435,926.40 and 113,027.20

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Solution

The fourth proportional to 290,514.40, 435,926.40 and 113,027.20 is: 169,601.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,514.40 : 435,926.40 = 113,027.20 : x
  2. Step 2: Convert to fraction form
    290,514.40/435,926.40 = 113,027.20/x
  3. Step 3: Cross multiply
    290,514.40x = 435,926.40 × 113,027.20
  4. Step 4: Simplify right side
    290,514.40x = 49,271,540,398.08
  5. Step 5: Solve for x
    x = 49,271,540,398.08/290,514.40
  6. Step 6: Final answer
    x = 169,601.03

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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.