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Finding the Fourth Proportional to 458.67, 631.53 and 403.14

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Solution

The fourth proportional to 458.67, 631.53 and 403.14 is: 555.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.67 : 631.53 = 403.14 : x
  2. Step 2: Convert to fraction form
    458.67/631.53 = 403.14/x
  3. Step 3: Cross multiply
    458.67x = 631.53 × 403.14
  4. Step 4: Simplify right side
    458.67x = 254,595.00
  5. Step 5: Solve for x
    x = 254,595.00/458.67
  6. Step 6: Final answer
    x = 555.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.