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Finding the Fourth Proportional to 435,090.75, 652,636.13 and 154,619.07

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Solution

The fourth proportional to 435,090.75, 652,636.13 and 154,619.07 is: 231,928.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,090.75 : 652,636.13 = 154,619.07 : x
  2. Step 2: Convert to fraction form
    435,090.75/652,636.13 = 154,619.07/x
  3. Step 3: Cross multiply
    435,090.75x = 652,636.13 × 154,619.07
  4. Step 4: Simplify right side
    435,090.75x = 100,909,990,695.90
  5. Step 5: Solve for x
    x = 100,909,990,695.90/435,090.75
  6. Step 6: Final answer
    x = 231,928.61

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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.