Home / 289,459.39-434,231.15-89,795.69

Finding the Fourth Proportional to 289,459.39, 434,231.15 and 89,795.69

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Solution

The fourth proportional to 289,459.39, 434,231.15 and 89,795.69 is: 134,706.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,459.39 : 434,231.15 = 89,795.69 : x
  2. Step 2: Convert to fraction form
    289,459.39/434,231.15 = 89,795.69/x
  3. Step 3: Cross multiply
    289,459.39x = 434,231.15 × 89,795.69
  4. Step 4: Simplify right side
    289,459.39x = 38,992,085,733.74
  5. Step 5: Solve for x
    x = 38,992,085,733.74/289,459.39
  6. Step 6: Final answer
    x = 134,706.58

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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.