Home / 201,451.47-278,047.98-157,757.34

Finding the Fourth Proportional to 201,451.47, 278,047.98 and 157,757.34

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Solution

The fourth proportional to 201,451.47, 278,047.98 and 157,757.34 is: 217,740.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,451.47 : 278,047.98 = 157,757.34 : x
  2. Step 2: Convert to fraction form
    201,451.47/278,047.98 = 157,757.34/x
  3. Step 3: Cross multiply
    201,451.47x = 278,047.98 × 157,757.34
  4. Step 4: Simplify right side
    201,451.47x = 43,864,109,717.17
  5. Step 5: Solve for x
    x = 43,864,109,717.17/201,451.47
  6. Step 6: Final answer
    x = 217,740.33

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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.