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Finding the Fourth Proportional to 369,685.88, 554,470.98 and 120,366.20

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Solution

The fourth proportional to 369,685.88, 554,470.98 and 120,366.20 is: 180,530.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,685.88 : 554,470.98 = 120,366.20 : x
  2. Step 2: Convert to fraction form
    369,685.88/554,470.98 = 120,366.20/x
  3. Step 3: Cross multiply
    369,685.88x = 554,470.98 × 120,366.20
  4. Step 4: Simplify right side
    369,685.88x = 66,739,564,872.88
  5. Step 5: Solve for x
    x = 66,739,564,872.88/369,685.88
  6. Step 6: Final answer
    x = 180,530.47

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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.