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Finding the Fourth Proportional to 235,156.97, 324,519 and 127,729.10

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Solution

The fourth proportional to 235,156.97, 324,519 and 127,729.10 is: 176,267.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,156.97 : 324,519 = 127,729.10 : x
  2. Step 2: Convert to fraction form
    235,156.97/324,519 = 127,729.10/x
  3. Step 3: Cross multiply
    235,156.97x = 324,519 × 127,729.10
  4. Step 4: Simplify right side
    235,156.97x = 41,450,519,802.90
  5. Step 5: Solve for x
    x = 41,450,519,802.90/235,156.97
  6. Step 6: Final answer
    x = 176,267.45

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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.