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Finding the Fourth Proportional to 439,955.60, 659,666.10 and 173,408.90

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Solution

The fourth proportional to 439,955.60, 659,666.10 and 173,408.90 is: 260,007.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,955.60 : 659,666.10 = 173,408.90 : x
  2. Step 2: Convert to fraction form
    439,955.60/659,666.10 = 173,408.90/x
  3. Step 3: Cross multiply
    439,955.60x = 659,666.10 × 173,408.90
  4. Step 4: Simplify right side
    439,955.60x = 114,391,972,768.29
  5. Step 5: Solve for x
    x = 114,391,972,768.29/439,955.60
  6. Step 6: Final answer
    x = 260,007.99

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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.