Home / 280,816.97-387,527.60-153,492.55

Finding the Fourth Proportional to 280,816.97, 387,527.60 and 153,492.55

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Solution

The fourth proportional to 280,816.97, 387,527.60 and 153,492.55 is: 211,819.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,816.97 : 387,527.60 = 153,492.55 : x
  2. Step 2: Convert to fraction form
    280,816.97/387,527.60 = 153,492.55/x
  3. Step 3: Cross multiply
    280,816.97x = 387,527.60 × 153,492.55
  4. Step 4: Simplify right side
    280,816.97x = 59,482,598,934.29
  5. Step 5: Solve for x
    x = 59,482,598,934.29/280,816.97
  6. Step 6: Final answer
    x = 211,819.82

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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.