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Finding the Fourth Proportional to 475,563, 655,749.86 and 303,207.96

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Solution

The fourth proportional to 475,563, 655,749.86 and 303,207.96 is: 418,090.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,563 : 655,749.86 = 303,207.96 : x
  2. Step 2: Convert to fraction form
    475,563/655,749.86 = 303,207.96/x
  3. Step 3: Cross multiply
    475,563x = 655,749.86 × 303,207.96
  4. Step 4: Simplify right side
    475,563x = 198,828,577,320.89
  5. Step 5: Solve for x
    x = 198,828,577,320.89/475,563
  6. Step 6: Final answer
    x = 418,090.93

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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.