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Finding the Fourth Proportional to 448,400.80, 672,454.86 and 148,800.90

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Solution

The fourth proportional to 448,400.80, 672,454.86 and 148,800.90 is: 223,152.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,400.80 : 672,454.86 = 148,800.90 : x
  2. Step 2: Convert to fraction form
    448,400.80/672,454.86 = 148,800.90/x
  3. Step 3: Cross multiply
    448,400.80x = 672,454.86 × 148,800.90
  4. Step 4: Simplify right side
    448,400.80x = 100,061,888,377.37
  5. Step 5: Solve for x
    x = 100,061,888,377.37/448,400.80
  6. Step 6: Final answer
    x = 223,152.79

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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.