Home / 394,435.32-591,915.06-145,117.08

Finding the Fourth Proportional to 394,435.32, 591,915.06 and 145,117.08

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Solution

The fourth proportional to 394,435.32, 591,915.06 and 145,117.08 is: 217,772.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,435.32 : 591,915.06 = 145,117.08 : x
  2. Step 2: Convert to fraction form
    394,435.32/591,915.06 = 145,117.08/x
  3. Step 3: Cross multiply
    394,435.32x = 591,915.06 × 145,117.08
  4. Step 4: Simplify right side
    394,435.32x = 85,896,985,115.22
  5. Step 5: Solve for x
    x = 85,896,985,115.22/394,435.32
  6. Step 6: Final answer
    x = 217,772.04

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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.