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Finding the Fourth Proportional to 314,891.28, 434,534.22 and 178,907.27

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Solution

The fourth proportional to 314,891.28, 434,534.22 and 178,907.27 is: 246,883.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,891.28 : 434,534.22 = 178,907.27 : x
  2. Step 2: Convert to fraction form
    314,891.28/434,534.22 = 178,907.27/x
  3. Step 3: Cross multiply
    314,891.28x = 434,534.22 × 178,907.27
  4. Step 4: Simplify right side
    314,891.28x = 77,741,328,849.11
  5. Step 5: Solve for x
    x = 77,741,328,849.11/314,891.28
  6. Step 6: Final answer
    x = 246,883.08

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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.