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Finding the Fourth Proportional to 341,711.80, 512,567.70 and 131,356.60

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Solution

The fourth proportional to 341,711.80, 512,567.70 and 131,356.60 is: 197,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,711.80 : 512,567.70 = 131,356.60 : x
  2. Step 2: Convert to fraction form
    341,711.80/512,567.70 = 131,356.60/x
  3. Step 3: Cross multiply
    341,711.80x = 512,567.70 × 131,356.60
  4. Step 4: Simplify right side
    341,711.80x = 67,329,150,341.82
  5. Step 5: Solve for x
    x = 67,329,150,341.82/341,711.80
  6. Step 6: Final answer
    x = 197,034.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.