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Finding the Fourth Proportional to 228,246.40, 342,369.60 and 172,477.90

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Solution

The fourth proportional to 228,246.40, 342,369.60 and 172,477.90 is: 258,716.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,246.40 : 342,369.60 = 172,477.90 : x
  2. Step 2: Convert to fraction form
    228,246.40/342,369.60 = 172,477.90/x
  3. Step 3: Cross multiply
    228,246.40x = 342,369.60 × 172,477.90
  4. Step 4: Simplify right side
    228,246.40x = 59,051,189,631.84
  5. Step 5: Solve for x
    x = 59,051,189,631.84/228,246.40
  6. Step 6: Final answer
    x = 258,716.85

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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.