Home / 287,940.12-431,725.17-119,576.58

Finding the Fourth Proportional to 287,940.12, 431,725.17 and 119,576.58

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Solution

The fourth proportional to 287,940.12, 431,725.17 and 119,576.58 is: 179,288.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,940.12 : 431,725.17 = 119,576.58 : x
  2. Step 2: Convert to fraction form
    287,940.12/431,725.17 = 119,576.58/x
  3. Step 3: Cross multiply
    287,940.12x = 431,725.17 × 119,576.58
  4. Step 4: Simplify right side
    287,940.12x = 51,624,219,328.52
  5. Step 5: Solve for x
    x = 51,624,219,328.52/287,940.12
  6. Step 6: Final answer
    x = 179,288.04

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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.