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Finding the Fourth Proportional to 448,666.30, 672,768.60 and 133,082.20

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Solution

The fourth proportional to 448,666.30, 672,768.60 and 133,082.20 is: 199,554.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,666.30 : 672,768.60 = 133,082.20 : x
  2. Step 2: Convert to fraction form
    448,666.30/672,768.60 = 133,082.20/x
  3. Step 3: Cross multiply
    448,666.30x = 672,768.60 × 133,082.20
  4. Step 4: Simplify right side
    448,666.30x = 89,533,525,378.92
  5. Step 5: Solve for x
    x = 89,533,525,378.92/448,666.30
  6. Step 6: Final answer
    x = 199,554.83

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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.