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Finding the Fourth Proportional to 383,651.66, 575,479.41 and 99,322.26

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Solution

The fourth proportional to 383,651.66, 575,479.41 and 99,322.26 is: 148,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,651.66 : 575,479.41 = 99,322.26 : x
  2. Step 2: Convert to fraction form
    383,651.66/575,479.41 = 99,322.26/x
  3. Step 3: Cross multiply
    383,651.66x = 575,479.41 × 99,322.26
  4. Step 4: Simplify right side
    383,651.66x = 57,157,917,065.58
  5. Step 5: Solve for x
    x = 57,157,917,065.58/383,651.66
  6. Step 6: Final answer
    x = 148,983.89

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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.