Home / 387,334.36-580,476.12-187,256.26

Finding the Fourth Proportional to 387,334.36, 580,476.12 and 187,256.26

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Solution

The fourth proportional to 387,334.36, 580,476.12 and 187,256.26 is: 280,630.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,334.36 : 580,476.12 = 187,256.26 : x
  2. Step 2: Convert to fraction form
    387,334.36/580,476.12 = 187,256.26/x
  3. Step 3: Cross multiply
    387,334.36x = 580,476.12 × 187,256.26
  4. Step 4: Simplify right side
    387,334.36x = 108,697,787,250.51
  5. Step 5: Solve for x
    x = 108,697,787,250.51/387,334.36
  6. Step 6: Final answer
    x = 280,630.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.