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Finding the Fourth Proportional to 664,293.60, 996,278.40 and 190,929.60

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Solution

The fourth proportional to 664,293.60, 996,278.40 and 190,929.60 is: 286,347.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,293.60 : 996,278.40 = 190,929.60 : x
  2. Step 2: Convert to fraction form
    664,293.60/996,278.40 = 190,929.60/x
  3. Step 3: Cross multiply
    664,293.60x = 996,278.40 × 190,929.60
  4. Step 4: Simplify right side
    664,293.60x = 190,219,036,400.64
  5. Step 5: Solve for x
    x = 190,219,036,400.64/664,293.60
  6. Step 6: Final answer
    x = 286,347.84

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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.