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Finding the Fourth Proportional to 228,317.40, 342,476.10 and 227,005.20

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Solution

The fourth proportional to 228,317.40, 342,476.10 and 227,005.20 is: 340,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,317.40 : 342,476.10 = 227,005.20 : x
  2. Step 2: Convert to fraction form
    228,317.40/342,476.10 = 227,005.20/x
  3. Step 3: Cross multiply
    228,317.40x = 342,476.10 × 227,005.20
  4. Step 4: Simplify right side
    228,317.40x = 77,743,855,575.72
  5. Step 5: Solve for x
    x = 77,743,855,575.72/228,317.40
  6. Step 6: Final answer
    x = 340,507.80

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1.5x scale

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.