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Finding the Fourth Proportional to 370,010.30, 555,015.45 and 103,815.95

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Solution

The fourth proportional to 370,010.30, 555,015.45 and 103,815.95 is: 155,723.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,010.30 : 555,015.45 = 103,815.95 : x
  2. Step 2: Convert to fraction form
    370,010.30/555,015.45 = 103,815.95/x
  3. Step 3: Cross multiply
    370,010.30x = 555,015.45 × 103,815.95
  4. Step 4: Simplify right side
    370,010.30x = 57,619,456,206.43
  5. Step 5: Solve for x
    x = 57,619,456,206.43/370,010.30
  6. Step 6: Final answer
    x = 155,723.93

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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.