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Finding the Fourth Proportional to 290,293.40, 435,467.58 and 112,814.10

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Solution

The fourth proportional to 290,293.40, 435,467.58 and 112,814.10 is: 169,231.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,293.40 : 435,467.58 = 112,814.10 : x
  2. Step 2: Convert to fraction form
    290,293.40/435,467.58 = 112,814.10/x
  3. Step 3: Cross multiply
    290,293.40x = 435,467.58 × 112,814.10
  4. Step 4: Simplify right side
    290,293.40x = 49,126,883,116.88
  5. Step 5: Solve for x
    x = 49,126,883,116.88/290,293.40
  6. Step 6: Final answer
    x = 169,231.83

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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.