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Finding the Fourth Proportional to 599.81, 899.45 and 291.75

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Solution

The fourth proportional to 599.81, 899.45 and 291.75 is: 437.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.81 : 899.45 = 291.75 : x
  2. Step 2: Convert to fraction form
    599.81/899.45 = 291.75/x
  3. Step 3: Cross multiply
    599.81x = 899.45 × 291.75
  4. Step 4: Simplify right side
    599.81x = 262,417.50
  5. Step 5: Solve for x
    x = 262,417.50/599.81
  6. Step 6: Final answer
    x = 437.50

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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.