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Finding the Fourth Proportional to 342,997.42, 514,496.34 and 143,208.94

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Solution

The fourth proportional to 342,997.42, 514,496.34 and 143,208.94 is: 214,813.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,997.42 : 514,496.34 = 143,208.94 : x
  2. Step 2: Convert to fraction form
    342,997.42/514,496.34 = 143,208.94/x
  3. Step 3: Cross multiply
    342,997.42x = 514,496.34 × 143,208.94
  4. Step 4: Simplify right side
    342,997.42x = 73,680,475,485.28
  5. Step 5: Solve for x
    x = 73,680,475,485.28/342,997.42
  6. Step 6: Final answer
    x = 214,813.50

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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.