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Finding the Fourth Proportional to 318,782.34, 439,919.58 and 175,542.03

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Solution

The fourth proportional to 318,782.34, 439,919.58 and 175,542.03 is: 242,247.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,782.34 : 439,919.58 = 175,542.03 : x
  2. Step 2: Convert to fraction form
    318,782.34/439,919.58 = 175,542.03/x
  3. Step 3: Cross multiply
    318,782.34x = 439,919.58 × 175,542.03
  4. Step 4: Simplify right side
    318,782.34x = 77,224,376,109.95
  5. Step 5: Solve for x
    x = 77,224,376,109.95/318,782.34
  6. Step 6: Final answer
    x = 242,247.97

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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.