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Finding the Fourth Proportional to 403,325.91, 604,989.06 and 166,408.20

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Solution

The fourth proportional to 403,325.91, 604,989.06 and 166,408.20 is: 249,612.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,325.91 : 604,989.06 = 166,408.20 : x
  2. Step 2: Convert to fraction form
    403,325.91/604,989.06 = 166,408.20/x
  3. Step 3: Cross multiply
    403,325.91x = 604,989.06 × 166,408.20
  4. Step 4: Simplify right side
    403,325.91x = 100,675,140,494.29
  5. Step 5: Solve for x
    x = 100,675,140,494.29/403,325.91
  6. Step 6: Final answer
    x = 249,612.38

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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.