Home / 280,272.96-386,784.90-152,956.80

Finding the Fourth Proportional to 280,272.96, 386,784.90 and 152,956.80

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Solution

The fourth proportional to 280,272.96, 386,784.90 and 152,956.80 is: 211,084.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,272.96 : 386,784.90 = 152,956.80 : x
  2. Step 2: Convert to fraction form
    280,272.96/386,784.90 = 152,956.80/x
  3. Step 3: Cross multiply
    280,272.96x = 386,784.90 × 152,956.80
  4. Step 4: Simplify right side
    280,272.96x = 59,161,380,592.32
  5. Step 5: Solve for x
    x = 59,161,380,592.32/280,272.96
  6. Step 6: Final answer
    x = 211,084.87

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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.