Home / 281,186.51-388,037.25-153,862.07

Finding the Fourth Proportional to 281,186.51, 388,037.25 and 153,862.07

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Solution

The fourth proportional to 281,186.51, 388,037.25 and 153,862.07 is: 212,329.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,186.51 : 388,037.25 = 153,862.07 : x
  2. Step 2: Convert to fraction form
    281,186.51/388,037.25 = 153,862.07/x
  3. Step 3: Cross multiply
    281,186.51x = 388,037.25 × 153,862.07
  4. Step 4: Simplify right side
    281,186.51x = 59,704,212,581.92
  5. Step 5: Solve for x
    x = 59,704,212,581.92/281,186.51
  6. Step 6: Final answer
    x = 212,329.58

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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.