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Finding the Fourth Proportional to 228,603.90, 342,140.79 and 225,579.45

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Solution

The fourth proportional to 228,603.90, 342,140.79 and 225,579.45 is: 337,614.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,603.90 : 342,140.79 = 225,579.45 : x
  2. Step 2: Convert to fraction form
    228,603.90/342,140.79 = 225,579.45/x
  3. Step 3: Cross multiply
    228,603.90x = 342,140.79 × 225,579.45
  4. Step 4: Simplify right side
    228,603.90x = 77,179,931,230.77
  5. Step 5: Solve for x
    x = 77,179,931,230.77/228,603.90
  6. Step 6: Final answer
    x = 337,614.24

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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.