Home / 289,454.85-434,059.25-118,558.75

Finding the Fourth Proportional to 289,454.85, 434,059.25 and 118,558.75

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Solution

The fourth proportional to 289,454.85, 434,059.25 and 118,558.75 is: 177,787.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,454.85 : 434,059.25 = 118,558.75 : x
  2. Step 2: Convert to fraction form
    289,454.85/434,059.25 = 118,558.75/x
  3. Step 3: Cross multiply
    289,454.85x = 434,059.25 × 118,558.75
  4. Step 4: Simplify right side
    289,454.85x = 51,461,519,935.64
  5. Step 5: Solve for x
    x = 51,461,519,935.64/289,454.85
  6. Step 6: Final answer
    x = 177,787.73

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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.