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Finding the Fourth Proportional to 372,878.70, 559,301.80 and 120,153.54

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Solution

The fourth proportional to 372,878.70, 559,301.80 and 120,153.54 is: 180,225.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,878.70 : 559,301.80 = 120,153.54 : x
  2. Step 2: Convert to fraction form
    372,878.70/559,301.80 = 120,153.54/x
  3. Step 3: Cross multiply
    372,878.70x = 559,301.80 × 120,153.54
  4. Step 4: Simplify right side
    372,878.70x = 67,202,091,198.37
  5. Step 5: Solve for x
    x = 67,202,091,198.37/372,878.70
  6. Step 6: Final answer
    x = 180,225.07

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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.