Home / 318,250.12-439,155.12-189,178.24

Finding the Fourth Proportional to 318,250.12, 439,155.12 and 189,178.24

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Solution

The fourth proportional to 318,250.12, 439,155.12 and 189,178.24 is: 261,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,250.12 : 439,155.12 = 189,178.24 : x
  2. Step 2: Convert to fraction form
    318,250.12/439,155.12 = 189,178.24/x
  3. Step 3: Cross multiply
    318,250.12x = 439,155.12 × 189,178.24
  4. Step 4: Simplify right side
    318,250.12x = 83,078,592,688.59
  5. Step 5: Solve for x
    x = 83,078,592,688.59/318,250.12
  6. Step 6: Final answer
    x = 261,048.11

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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.