Home / 280,238.08-386,730.84-152,915.80

Finding the Fourth Proportional to 280,238.08, 386,730.84 and 152,915.80

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Solution

The fourth proportional to 280,238.08, 386,730.84 and 152,915.80 is: 211,025.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,238.08 : 386,730.84 = 152,915.80 : x
  2. Step 2: Convert to fraction form
    280,238.08/386,730.84 = 152,915.80/x
  3. Step 3: Cross multiply
    280,238.08x = 386,730.84 × 152,915.80
  4. Step 4: Simplify right side
    280,238.08x = 59,137,255,783.27
  5. Step 5: Solve for x
    x = 59,137,255,783.27/280,238.08
  6. Step 6: Final answer
    x = 211,025.05

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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.