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Finding the Fourth Proportional to 636,015.83, 954,008.77 and 156,242.88

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Solution

The fourth proportional to 636,015.83, 954,008.77 and 156,242.88 is: 234,360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,015.83 : 954,008.77 = 156,242.88 : x
  2. Step 2: Convert to fraction form
    636,015.83/954,008.77 = 156,242.88/x
  3. Step 3: Cross multiply
    636,015.83x = 954,008.77 × 156,242.88
  4. Step 4: Simplify right side
    636,015.83x = 149,057,077,770.06
  5. Step 5: Solve for x
    x = 149,057,077,770.06/636,015.83
  6. Step 6: Final answer
    x = 234,360.64

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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.