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Finding the Fourth Proportional to 468,395.75, 646,387.75 and 253,535.76

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Solution

The fourth proportional to 468,395.75, 646,387.75 and 253,535.76 is: 349,880.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,395.75 : 646,387.75 = 253,535.76 : x
  2. Step 2: Convert to fraction form
    468,395.75/646,387.75 = 253,535.76/x
  3. Step 3: Cross multiply
    468,395.75x = 646,387.75 × 253,535.76
  4. Step 4: Simplify right side
    468,395.75x = 163,882,409,450.94
  5. Step 5: Solve for x
    x = 163,882,409,450.94/468,395.75
  6. Step 6: Final answer
    x = 349,880.22

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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.