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Finding the Fourth Proportional to 447,653, 671,479.60 and 148,053.20

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Solution

The fourth proportional to 447,653, 671,479.60 and 148,053.20 is: 222,079.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,653 : 671,479.60 = 148,053.20 : x
  2. Step 2: Convert to fraction form
    447,653/671,479.60 = 148,053.20/x
  3. Step 3: Cross multiply
    447,653x = 671,479.60 × 148,053.20
  4. Step 4: Simplify right side
    447,653x = 99,414,703,514.72
  5. Step 5: Solve for x
    x = 99,414,703,514.72/447,653
  6. Step 6: Final answer
    x = 222,079.83

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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.