Home / 318,977.62-440,184.20-175,742.80

Finding the Fourth Proportional to 318,977.62, 440,184.20 and 175,742.80

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Solution

The fourth proportional to 318,977.62, 440,184.20 and 175,742.80 is: 242,522.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,977.62 : 440,184.20 = 175,742.80 : x
  2. Step 2: Convert to fraction form
    318,977.62/440,184.20 = 175,742.80/x
  3. Step 3: Cross multiply
    318,977.62x = 440,184.20 × 175,742.80
  4. Step 4: Simplify right side
    318,977.62x = 77,359,203,823.76
  5. Step 5: Solve for x
    x = 77,359,203,823.76/318,977.62
  6. Step 6: Final answer
    x = 242,522.36

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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.