Home / 281,207.57-388,066.41-153,883.13

Finding the Fourth Proportional to 281,207.57, 388,066.41 and 153,883.13

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Solution

The fourth proportional to 281,207.57, 388,066.41 and 153,883.13 is: 212,358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,207.57 : 388,066.41 = 153,883.13 : x
  2. Step 2: Convert to fraction form
    281,207.57/388,066.41 = 153,883.13/x
  3. Step 3: Cross multiply
    281,207.57x = 388,066.41 × 153,883.13
  4. Step 4: Simplify right side
    281,207.57x = 59,716,871,878.33
  5. Step 5: Solve for x
    x = 59,716,871,878.33/281,207.57
  6. Step 6: Final answer
    x = 212,358.70

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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.