Home / 280,237.77-386,724.92-152,915.49

Finding the Fourth Proportional to 280,237.77, 386,724.92 and 152,915.49

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Solution

The fourth proportional to 280,237.77, 386,724.92 and 152,915.49 is: 211,021.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,237.77 : 386,724.92 = 152,915.49 : x
  2. Step 2: Convert to fraction form
    280,237.77/386,724.92 = 152,915.49/x
  3. Step 3: Cross multiply
    280,237.77x = 386,724.92 × 152,915.49
  4. Step 4: Simplify right side
    280,237.77x = 59,136,229,872.43
  5. Step 5: Solve for x
    x = 59,136,229,872.43/280,237.77
  6. Step 6: Final answer
    x = 211,021.63

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1.5x scale

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.