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Finding the Fourth Proportional to 479,625.60, 719,438.40 and 164,035.20

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Solution

The fourth proportional to 479,625.60, 719,438.40 and 164,035.20 is: 246,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,625.60 : 719,438.40 = 164,035.20 : x
  2. Step 2: Convert to fraction form
    479,625.60/719,438.40 = 164,035.20/x
  3. Step 3: Cross multiply
    479,625.60x = 719,438.40 × 164,035.20
  4. Step 4: Simplify right side
    479,625.60x = 118,013,221,831.68
  5. Step 5: Solve for x
    x = 118,013,221,831.68/479,625.60
  6. Step 6: Final answer
    x = 246,052.80

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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.