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Finding the Fourth Proportional to 356,106.36, 534,212.32 and 103,388.92

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Solution

The fourth proportional to 356,106.36, 534,212.32 and 103,388.92 is: 155,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,106.36 : 534,212.32 = 103,388.92 : x
  2. Step 2: Convert to fraction form
    356,106.36/534,212.32 = 103,388.92/x
  3. Step 3: Cross multiply
    356,106.36x = 534,212.32 × 103,388.92
  4. Step 4: Simplify right side
    356,106.36x = 55,231,634,815.49
  5. Step 5: Solve for x
    x = 55,231,634,815.49/356,106.36
  6. Step 6: Final answer
    x = 155,098.70

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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.