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Finding the Fourth Proportional to 318,496.88, 439,536.12 and 175,267.28

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Solution

The fourth proportional to 318,496.88, 439,536.12 and 175,267.28 is: 241,874.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,496.88 : 439,536.12 = 175,267.28 : x
  2. Step 2: Convert to fraction form
    318,496.88/439,536.12 = 175,267.28/x
  3. Step 3: Cross multiply
    318,496.88x = 439,536.12 × 175,267.28
  4. Step 4: Simplify right side
    318,496.88x = 77,036,300,214.15
  5. Step 5: Solve for x
    x = 77,036,300,214.15/318,496.88
  6. Step 6: Final answer
    x = 241,874.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.