Home / 228,246.12-342,369.32-86,052.78

Finding the Fourth Proportional to 228,246.12, 342,369.32 and 86,052.78

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Solution

The fourth proportional to 228,246.12, 342,369.32 and 86,052.78 is: 129,079.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,246.12 : 342,369.32 = 86,052.78 : x
  2. Step 2: Convert to fraction form
    228,246.12/342,369.32 = 86,052.78/x
  3. Step 3: Cross multiply
    228,246.12x = 342,369.32 × 86,052.78
  4. Step 4: Simplify right side
    228,246.12x = 29,461,831,342.45
  5. Step 5: Solve for x
    x = 29,461,831,342.45/228,246.12
  6. Step 6: Final answer
    x = 129,079.22

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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.