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Finding the Fourth Proportional to 187,085.60, 280,628.40 and 161,716.40

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Solution

The fourth proportional to 187,085.60, 280,628.40 and 161,716.40 is: 242,574.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,085.60 : 280,628.40 = 161,716.40 : x
  2. Step 2: Convert to fraction form
    187,085.60/280,628.40 = 161,716.40/x
  3. Step 3: Cross multiply
    187,085.60x = 280,628.40 × 161,716.40
  4. Step 4: Simplify right side
    187,085.60x = 45,382,214,585.76
  5. Step 5: Solve for x
    x = 45,382,214,585.76/187,085.60
  6. Step 6: Final answer
    x = 242,574.60

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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.