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Finding the Fourth Proportional to 318,782.59, 439,919.92 and 175,542.28

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Solution

The fourth proportional to 318,782.59, 439,919.92 and 175,542.28 is: 242,248.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,782.59 : 439,919.92 = 175,542.28 : x
  2. Step 2: Convert to fraction form
    318,782.59/439,919.92 = 175,542.28/x
  3. Step 3: Cross multiply
    318,782.59x = 439,919.92 × 175,542.28
  4. Step 4: Simplify right side
    318,782.59x = 77,224,545,774.22
  5. Step 5: Solve for x
    x = 77,224,545,774.22/318,782.59
  6. Step 6: Final answer
    x = 242,248.32

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1.5x scale

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.