Home / 257,007.03-385,256.22-121,833.66

Finding the Fourth Proportional to 257,007.03, 385,256.22 and 121,833.66

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Solution

The fourth proportional to 257,007.03, 385,256.22 and 121,833.66 is: 182,629.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,007.03 : 385,256.22 = 121,833.66 : x
  2. Step 2: Convert to fraction form
    257,007.03/385,256.22 = 121,833.66/x
  3. Step 3: Cross multiply
    257,007.03x = 385,256.22 × 121,833.66
  4. Step 4: Simplify right side
    257,007.03x = 46,937,175,320.37
  5. Step 5: Solve for x
    x = 46,937,175,320.37/257,007.03
  6. Step 6: Final answer
    x = 182,629.93

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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.