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Finding the Fourth Proportional to 383,419.80, 575,124.30 and 173,057.40

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Solution

The fourth proportional to 383,419.80, 575,124.30 and 173,057.40 is: 259,583.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,419.80 : 575,124.30 = 173,057.40 : x
  2. Step 2: Convert to fraction form
    383,419.80/575,124.30 = 173,057.40/x
  3. Step 3: Cross multiply
    383,419.80x = 575,124.30 × 173,057.40
  4. Step 4: Simplify right side
    383,419.80x = 99,529,516,034.82
  5. Step 5: Solve for x
    x = 99,529,516,034.82/383,419.80
  6. Step 6: Final answer
    x = 259,583.66

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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.