Home / 281,110.14-387,941.13-153,785.74

Finding the Fourth Proportional to 281,110.14, 387,941.13 and 153,785.74

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Solution

The fourth proportional to 281,110.14, 387,941.13 and 153,785.74 is: 212,229.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,110.14 : 387,941.13 = 153,785.74 : x
  2. Step 2: Convert to fraction form
    281,110.14/387,941.13 = 153,785.74/x
  3. Step 3: Cross multiply
    281,110.14x = 387,941.13 × 153,785.74
  4. Step 4: Simplify right side
    281,110.14x = 59,659,811,813.78
  5. Step 5: Solve for x
    x = 59,659,811,813.78/281,110.14
  6. Step 6: Final answer
    x = 212,229.31

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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.