Home / 280,996.36-387,767.11-153,669.22

Finding the Fourth Proportional to 280,996.36, 387,767.11 and 153,669.22

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Solution

The fourth proportional to 280,996.36, 387,767.11 and 153,669.22 is: 212,059.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,996.36 : 387,767.11 = 153,669.22 : x
  2. Step 2: Convert to fraction form
    280,996.36/387,767.11 = 153,669.22/x
  3. Step 3: Cross multiply
    280,996.36x = 387,767.11 × 153,669.22
  4. Step 4: Simplify right side
    280,996.36x = 59,587,869,335.35
  5. Step 5: Solve for x
    x = 59,587,869,335.35/280,996.36
  6. Step 6: Final answer
    x = 212,059.22

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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.