Home / 287,927.19-431,890.71-154,624.07

Finding the Fourth Proportional to 287,927.19, 431,890.71 and 154,624.07

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Solution

The fourth proportional to 287,927.19, 431,890.71 and 154,624.07 is: 231,936.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,927.19 : 431,890.71 = 154,624.07 : x
  2. Step 2: Convert to fraction form
    287,927.19/431,890.71 = 154,624.07/x
  3. Step 3: Cross multiply
    287,927.19x = 431,890.71 × 154,624.07
  4. Step 4: Simplify right side
    287,927.19x = 66,780,697,215.94
  5. Step 5: Solve for x
    x = 66,780,697,215.94/287,927.19
  6. Step 6: Final answer
    x = 231,936.06

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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.