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Finding the Fourth Proportional to 447,354.51, 617,330.73 and 243,406.26

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Solution

The fourth proportional to 447,354.51, 617,330.73 and 243,406.26 is: 335,890.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,354.51 : 617,330.73 = 243,406.26 : x
  2. Step 2: Convert to fraction form
    447,354.51/617,330.73 = 243,406.26/x
  3. Step 3: Cross multiply
    447,354.51x = 617,330.73 × 243,406.26
  4. Step 4: Simplify right side
    447,354.51x = 150,262,164,172.37
  5. Step 5: Solve for x
    x = 150,262,164,172.37/447,354.51
  6. Step 6: Final answer
    x = 335,890.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.