Home / 212,683.32-319,136.22-137,784.24

Finding the Fourth Proportional to 212,683.32, 319,136.22 and 137,784.24

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Solution

The fourth proportional to 212,683.32, 319,136.22 and 137,784.24 is: 206,748.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,683.32 : 319,136.22 = 137,784.24 : x
  2. Step 2: Convert to fraction form
    212,683.32/319,136.22 = 137,784.24/x
  3. Step 3: Cross multiply
    212,683.32x = 319,136.22 × 137,784.24
  4. Step 4: Simplify right side
    212,683.32x = 43,971,941,529.17
  5. Step 5: Solve for x
    x = 43,971,941,529.17/212,683.32
  6. Step 6: Final answer
    x = 206,748.43

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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.