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Finding the Fourth Proportional to 1,068.01, 1,601.87 and 288.07

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Solution

The fourth proportional to 1,068.01, 1,601.87 and 288.07 is: 432.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068.01 : 1,601.87 = 288.07 : x
  2. Step 2: Convert to fraction form
    1,068.01/1,601.87 = 288.07/x
  3. Step 3: Cross multiply
    1,068.01x = 1,601.87 × 288.07
  4. Step 4: Simplify right side
    1,068.01x = 461,441.24
  5. Step 5: Solve for x
    x = 461,441.24/1,068.01
  6. Step 6: Final answer
    x = 432.06

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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.