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Finding the Fourth Proportional to 595.55, 893.19 and 287.21

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Solution

The fourth proportional to 595.55, 893.19 and 287.21 is: 430.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.55 : 893.19 = 287.21 : x
  2. Step 2: Convert to fraction form
    595.55/893.19 = 287.21/x
  3. Step 3: Cross multiply
    595.55x = 893.19 × 287.21
  4. Step 4: Simplify right side
    595.55x = 256,533.10
  5. Step 5: Solve for x
    x = 256,533.10/595.55
  6. Step 6: Final answer
    x = 430.75

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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.