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Finding the Fourth Proportional to 289,557,903.20, 434,336,854.80 and 174,672,168.80

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Solution

The fourth proportional to 289,557,903.20, 434,336,854.80 and 174,672,168.80 is: 262,008,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,557,903.20 : 434,336,854.80 = 174,672,168.80 : x
  2. Step 2: Convert to fraction form
    289,557,903.20/434,336,854.80 = 174,672,168.80/x
  3. Step 3: Cross multiply
    289,557,903.20x = 434,336,854.80 × 174,672,168.80
  4. Step 4: Simplify right side
    289,557,903.20x = 75,866,560,417,686,704
  5. Step 5: Solve for x
    x = 75,866,560,417,686,704/289,557,903.20
  6. Step 6: Final answer
    x = 262,008,253.20

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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.