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Finding the Fourth Proportional to 447,400.40, 671,878.20 and 237,448.40

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Solution

The fourth proportional to 447,400.40, 671,878.20 and 237,448.40 is: 356,585.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,400.40 : 671,878.20 = 237,448.40 : x
  2. Step 2: Convert to fraction form
    447,400.40/671,878.20 = 237,448.40/x
  3. Step 3: Cross multiply
    447,400.40x = 671,878.20 × 237,448.40
  4. Step 4: Simplify right side
    447,400.40x = 159,536,403,584.88
  5. Step 5: Solve for x
    x = 159,536,403,584.88/447,400.40
  6. Step 6: Final answer
    x = 356,585.29

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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.