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Finding the Fourth Proportional to 316,850.28, 437,185.32 and 187,829.40

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Solution

The fourth proportional to 316,850.28, 437,185.32 and 187,829.40 is: 259,164.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,850.28 : 437,185.32 = 187,829.40 : x
  2. Step 2: Convert to fraction form
    316,850.28/437,185.32 = 187,829.40/x
  3. Step 3: Cross multiply
    316,850.28x = 437,185.32 × 187,829.40
  4. Step 4: Simplify right side
    316,850.28x = 82,116,256,344.41
  5. Step 5: Solve for x
    x = 82,116,256,344.41/316,850.28
  6. Step 6: Final answer
    x = 259,164.22

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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.