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Finding the Fourth Proportional to 369,982.35, 555,012.81 and 117,298.80

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Solution

The fourth proportional to 369,982.35, 555,012.81 and 117,298.80 is: 175,960.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,982.35 : 555,012.81 = 117,298.80 : x
  2. Step 2: Convert to fraction form
    369,982.35/555,012.81 = 117,298.80/x
  3. Step 3: Cross multiply
    369,982.35x = 555,012.81 × 117,298.80
  4. Step 4: Simplify right side
    369,982.35x = 65,102,336,597.63
  5. Step 5: Solve for x
    x = 65,102,336,597.63/369,982.35
  6. Step 6: Final answer
    x = 175,960.65

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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.