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Finding the Fourth Proportional to 313,418.70, 469,953.09 and 103,039.02

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Solution

The fourth proportional to 313,418.70, 469,953.09 and 103,039.02 is: 154,501.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,418.70 : 469,953.09 = 103,039.02 : x
  2. Step 2: Convert to fraction form
    313,418.70/469,953.09 = 103,039.02/x
  3. Step 3: Cross multiply
    313,418.70x = 469,953.09 × 103,039.02
  4. Step 4: Simplify right side
    313,418.70x = 48,423,505,839.57
  5. Step 5: Solve for x
    x = 48,423,505,839.57/313,418.70
  6. Step 6: Final answer
    x = 154,501.01

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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.