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Finding the Fourth Proportional to 369,879.30, 554,819.04 and 103,679.28

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Solution

The fourth proportional to 369,879.30, 554,819.04 and 103,679.28 is: 155,518.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,879.30 : 554,819.04 = 103,679.28 : x
  2. Step 2: Convert to fraction form
    369,879.30/554,819.04 = 103,679.28/x
  3. Step 3: Cross multiply
    369,879.30x = 554,819.04 × 103,679.28
  4. Step 4: Simplify right side
    369,879.30x = 57,523,238,597.49
  5. Step 5: Solve for x
    x = 57,523,238,597.49/369,879.30
  6. Step 6: Final answer
    x = 155,518.95

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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.