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Finding the Fourth Proportional to 656,367.60, 984,551.40 and 213,135.60

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Solution

The fourth proportional to 656,367.60, 984,551.40 and 213,135.60 is: 319,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,367.60 : 984,551.40 = 213,135.60 : x
  2. Step 2: Convert to fraction form
    656,367.60/984,551.40 = 213,135.60/x
  3. Step 3: Cross multiply
    656,367.60x = 984,551.40 × 213,135.60
  4. Step 4: Simplify right side
    656,367.60x = 209,842,953,369.84
  5. Step 5: Solve for x
    x = 209,842,953,369.84/656,367.60
  6. Step 6: Final answer
    x = 319,703.40

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Similar ratio
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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.