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Finding the Fourth Proportional to 389,480.60, 584,439.60 and 164,802.80

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Solution

The fourth proportional to 389,480.60, 584,439.60 and 164,802.80 is: 247,296.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,480.60 : 584,439.60 = 164,802.80 : x
  2. Step 2: Convert to fraction form
    389,480.60/584,439.60 = 164,802.80/x
  3. Step 3: Cross multiply
    389,480.60x = 584,439.60 × 164,802.80
  4. Step 4: Simplify right side
    389,480.60x = 96,317,282,510.88
  5. Step 5: Solve for x
    x = 96,317,282,510.88/389,480.60
  6. Step 6: Final answer
    x = 247,296.74

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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.