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Finding the Fourth Proportional to 458.95, 632.04 and 403.67

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Solution

The fourth proportional to 458.95, 632.04 and 403.67 is: 555.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.95 : 632.04 = 403.67 : x
  2. Step 2: Convert to fraction form
    458.95/632.04 = 403.67/x
  3. Step 3: Cross multiply
    458.95x = 632.04 × 403.67
  4. Step 4: Simplify right side
    458.95x = 255,132.43
  5. Step 5: Solve for x
    x = 255,132.43/458.95
  6. Step 6: Final answer
    x = 555.91

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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.