Home / 282,288.31-423,433.07-198,423.74

Finding the Fourth Proportional to 282,288.31, 423,433.07 and 198,423.74

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Solution

The fourth proportional to 282,288.31, 423,433.07 and 198,423.74 is: 297,636.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,288.31 : 423,433.07 = 198,423.74 : x
  2. Step 2: Convert to fraction form
    282,288.31/423,433.07 = 198,423.74/x
  3. Step 3: Cross multiply
    282,288.31x = 423,433.07 × 198,423.74
  4. Step 4: Simplify right side
    282,288.31x = 84,019,174,199.63
  5. Step 5: Solve for x
    x = 84,019,174,199.63/282,288.31
  6. Step 6: Final answer
    x = 297,636.04

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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.