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Finding the Fourth Proportional to 318,767.85, 439,902.63 and 175,533.12

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Solution

The fourth proportional to 318,767.85, 439,902.63 and 175,533.12 is: 242,237.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,767.85 : 439,902.63 = 175,533.12 : x
  2. Step 2: Convert to fraction form
    318,767.85/439,902.63 = 175,533.12/x
  3. Step 3: Cross multiply
    318,767.85x = 439,902.63 × 175,533.12
  4. Step 4: Simplify right side
    318,767.85x = 77,217,481,140.11
  5. Step 5: Solve for x
    x = 77,217,481,140.11/318,767.85
  6. Step 6: Final answer
    x = 242,237.36

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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.