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Finding the Fourth Proportional to 318,179.88, 439,025.22 and 178,482.92

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Solution

The fourth proportional to 318,179.88, 439,025.22 and 178,482.92 is: 246,271.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,179.88 : 439,025.22 = 178,482.92 : x
  2. Step 2: Convert to fraction form
    318,179.88/439,025.22 = 178,482.92/x
  3. Step 3: Cross multiply
    318,179.88x = 439,025.22 × 178,482.92
  4. Step 4: Simplify right side
    318,179.88x = 78,358,501,024.12
  5. Step 5: Solve for x
    x = 78,358,501,024.12/318,179.88
  6. Step 6: Final answer
    x = 246,271.07

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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.