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Finding the Fourth Proportional to 143,453.98, 216,255.36 and 133,820.24

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Solution

The fourth proportional to 143,453.98, 216,255.36 and 133,820.24 is: 201,732.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,453.98 : 216,255.36 = 133,820.24 : x
  2. Step 2: Convert to fraction form
    143,453.98/216,255.36 = 133,820.24/x
  3. Step 3: Cross multiply
    143,453.98x = 216,255.36 × 133,820.24
  4. Step 4: Simplify right side
    143,453.98x = 28,939,344,176.49
  5. Step 5: Solve for x
    x = 28,939,344,176.49/143,453.98
  6. Step 6: Final answer
    x = 201,732.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.