Home / 319,256.88-440,585.12-190,177.72

Finding the Fourth Proportional to 319,256.88, 440,585.12 and 190,177.72

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Solution

The fourth proportional to 319,256.88, 440,585.12 and 190,177.72 is: 262,451.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,256.88 : 440,585.12 = 190,177.72 : x
  2. Step 2: Convert to fraction form
    319,256.88/440,585.12 = 190,177.72/x
  3. Step 3: Cross multiply
    319,256.88x = 440,585.12 × 190,177.72
  4. Step 4: Simplify right side
    319,256.88x = 83,789,473,587.53
  5. Step 5: Solve for x
    x = 83,789,473,587.53/319,256.88
  6. Step 6: Final answer
    x = 262,451.58

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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.