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Finding the Fourth Proportional to 1,543.05, 2,314.55 and 373.05

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Solution

The fourth proportional to 1,543.05, 2,314.55 and 373.05 is: 559.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.05 : 2,314.55 = 373.05 : x
  2. Step 2: Convert to fraction form
    1,543.05/2,314.55 = 373.05/x
  3. Step 3: Cross multiply
    1,543.05x = 2,314.55 × 373.05
  4. Step 4: Simplify right side
    1,543.05x = 863,431.30
  5. Step 5: Solve for x
    x = 863,431.30/1,543.05
  6. Step 6: Final answer
    x = 559.56

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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.