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Finding the Fourth Proportional to 290,803.35, 436,026.42 and 113,103.30

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Solution

The fourth proportional to 290,803.35, 436,026.42 and 113,103.30 is: 169,585.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,803.35 : 436,026.42 = 113,103.30 : x
  2. Step 2: Convert to fraction form
    290,803.35/436,026.42 = 113,103.30/x
  3. Step 3: Cross multiply
    290,803.35x = 436,026.42 × 113,103.30
  4. Step 4: Simplify right side
    290,803.35x = 49,316,026,989.19
  5. Step 5: Solve for x
    x = 49,316,026,989.19/290,803.35
  6. Step 6: Final answer
    x = 169,585.48

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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.