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Finding the Fourth Proportional to 475,086.72, 655,628.16 and 260,223.36

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Solution

The fourth proportional to 475,086.72, 655,628.16 and 260,223.36 is: 359,112.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,086.72 : 655,628.16 = 260,223.36 : x
  2. Step 2: Convert to fraction form
    475,086.72/655,628.16 = 260,223.36/x
  3. Step 3: Cross multiply
    475,086.72x = 655,628.16 × 260,223.36
  4. Step 4: Simplify right side
    475,086.72x = 170,609,762,705.82
  5. Step 5: Solve for x
    x = 170,609,762,705.82/475,086.72
  6. Step 6: Final answer
    x = 359,112.89

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