Home / 280,191.45-386,663.76-152,867.06

Finding the Fourth Proportional to 280,191.45, 386,663.76 and 152,867.06

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Solution

The fourth proportional to 280,191.45, 386,663.76 and 152,867.06 is: 210,956.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,191.45 : 386,663.76 = 152,867.06 : x
  2. Step 2: Convert to fraction form
    280,191.45/386,663.76 = 152,867.06/x
  3. Step 3: Cross multiply
    280,191.45x = 386,663.76 × 152,867.06
  4. Step 4: Simplify right side
    280,191.45x = 59,108,150,266.43
  5. Step 5: Solve for x
    x = 59,108,150,266.43/280,191.45
  6. Step 6: Final answer
    x = 210,956.30

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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.