Home / 228,049.10-342,146.55-78,385.40

Finding the Fourth Proportional to 228,049.10, 342,146.55 and 78,385.40

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Solution

The fourth proportional to 228,049.10, 342,146.55 and 78,385.40 is: 117,603.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,049.10 : 342,146.55 = 78,385.40 : x
  2. Step 2: Convert to fraction form
    228,049.10/342,146.55 = 78,385.40/x
  3. Step 3: Cross multiply
    228,049.10x = 342,146.55 × 78,385.40
  4. Step 4: Simplify right side
    228,049.10x = 26,819,294,180.37
  5. Step 5: Solve for x
    x = 26,819,294,180.37/228,049.10
  6. Step 6: Final answer
    x = 117,603.16

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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.