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Finding the Fourth Proportional to 899.23, 1,347.81 and 351.10

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Solution

The fourth proportional to 899.23, 1,347.81 and 351.10 is: 526.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.23 : 1,347.81 = 351.10 : x
  2. Step 2: Convert to fraction form
    899.23/1,347.81 = 351.10/x
  3. Step 3: Cross multiply
    899.23x = 1,347.81 × 351.10
  4. Step 4: Simplify right side
    899.23x = 473,216.09
  5. Step 5: Solve for x
    x = 473,216.09/899.23
  6. Step 6: Final answer
    x = 526.25

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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.