Home / 289,110.90-433,650.15-89,429.70

Finding the Fourth Proportional to 289,110.90, 433,650.15 and 89,429.70

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Solution

The fourth proportional to 289,110.90, 433,650.15 and 89,429.70 is: 134,139.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,110.90 : 433,650.15 = 89,429.70 : x
  2. Step 2: Convert to fraction form
    289,110.90/433,650.15 = 89,429.70/x
  3. Step 3: Cross multiply
    289,110.90x = 433,650.15 × 89,429.70
  4. Step 4: Simplify right side
    289,110.90x = 38,781,202,819.46
  5. Step 5: Solve for x
    x = 38,781,202,819.46/289,110.90
  6. Step 6: Final answer
    x = 134,139.54

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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.