Home / 187,320.80-280,981.20-186,154.40

Finding the Fourth Proportional to 187,320.80, 280,981.20 and 186,154.40

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Solution

The fourth proportional to 187,320.80, 280,981.20 and 186,154.40 is: 279,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,320.80 : 280,981.20 = 186,154.40 : x
  2. Step 2: Convert to fraction form
    187,320.80/280,981.20 = 186,154.40/x
  3. Step 3: Cross multiply
    187,320.80x = 280,981.20 × 186,154.40
  4. Step 4: Simplify right side
    187,320.80x = 52,305,886,697.28
  5. Step 5: Solve for x
    x = 52,305,886,697.28/187,320.80
  6. Step 6: Final answer
    x = 279,231.60

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1.5x scale

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.