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Finding the Fourth Proportional to 369,913, 554,902.28 and 103,676.72

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Solution

The fourth proportional to 369,913, 554,902.28 and 103,676.72 is: 155,524.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,913 : 554,902.28 = 103,676.72 : x
  2. Step 2: Convert to fraction form
    369,913/554,902.28 = 103,676.72/x
  3. Step 3: Cross multiply
    369,913x = 554,902.28 × 103,676.72
  4. Step 4: Simplify right side
    369,913x = 57,530,448,310.92
  5. Step 5: Solve for x
    x = 57,530,448,310.92/369,913
  6. Step 6: Final answer
    x = 155,524.27

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1.5x scale

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.