Home / 289,517.04-434,316.78-89,854.68

Finding the Fourth Proportional to 289,517.04, 434,316.78 and 89,854.68

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Solution

The fourth proportional to 289,517.04, 434,316.78 and 89,854.68 is: 134,794.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,517.04 : 434,316.78 = 89,854.68 : x
  2. Step 2: Convert to fraction form
    289,517.04/434,316.78 = 89,854.68/x
  3. Step 3: Cross multiply
    289,517.04x = 434,316.78 × 89,854.68
  4. Step 4: Simplify right side
    289,517.04x = 39,025,395,285.53
  5. Step 5: Solve for x
    x = 39,025,395,285.53/289,517.04
  6. Step 6: Final answer
    x = 134,794.81

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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.