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Finding the Fourth Proportional to 370,200.30, 554,976.45 and 251,486.70

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Solution

The fourth proportional to 370,200.30, 554,976.45 and 251,486.70 is: 377,009.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,200.30 : 554,976.45 = 251,486.70 : x
  2. Step 2: Convert to fraction form
    370,200.30/554,976.45 = 251,486.70/x
  3. Step 3: Cross multiply
    370,200.30x = 554,976.45 × 251,486.70
  4. Step 4: Simplify right side
    370,200.30x = 139,569,195,988.22
  5. Step 5: Solve for x
    x = 139,569,195,988.22/370,200.30
  6. Step 6: Final answer
    x = 377,009.95

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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.