Home / 212,136.40-292,489.16-155,524.56

Finding the Fourth Proportional to 212,136.40, 292,489.16 and 155,524.56

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Solution

The fourth proportional to 212,136.40, 292,489.16 and 155,524.56 is: 214,433.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,136.40 : 292,489.16 = 155,524.56 : x
  2. Step 2: Convert to fraction form
    212,136.40/292,489.16 = 155,524.56/x
  3. Step 3: Cross multiply
    212,136.40x = 292,489.16 × 155,524.56
  4. Step 4: Simplify right side
    212,136.40x = 45,489,247,913.77
  5. Step 5: Solve for x
    x = 45,489,247,913.77/212,136.40
  6. Step 6: Final answer
    x = 214,433.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.