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Finding the Fourth Proportional to 378,355.39, 567,565.80 and 108,484.72

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Solution

The fourth proportional to 378,355.39, 567,565.80 and 108,484.72 is: 162,736.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,355.39 : 567,565.80 = 108,484.72 : x
  2. Step 2: Convert to fraction form
    378,355.39/567,565.80 = 108,484.72/x
  3. Step 3: Cross multiply
    378,355.39x = 567,565.80 × 108,484.72
  4. Step 4: Simplify right side
    378,355.39x = 61,572,216,894.58
  5. Step 5: Solve for x
    x = 61,572,216,894.58/378,355.39
  6. Step 6: Final answer
    x = 162,736.46

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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.