Home / 356,916.65-534,323.12-312,629.90

Finding the Fourth Proportional to 356,916.65, 534,323.12 and 312,629.90

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Solution

The fourth proportional to 356,916.65, 534,323.12 and 312,629.90 is: 468,023.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,916.65 : 534,323.12 = 312,629.90 : x
  2. Step 2: Convert to fraction form
    356,916.65/534,323.12 = 312,629.90/x
  3. Step 3: Cross multiply
    356,916.65x = 534,323.12 × 312,629.90
  4. Step 4: Simplify right side
    356,916.65x = 167,045,383,573.29
  5. Step 5: Solve for x
    x = 167,045,383,573.29/356,916.65
  6. Step 6: Final answer
    x = 468,023.51

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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.