Home / 289,917.40-434,919.30-102,913.24

Finding the Fourth Proportional to 289,917.40, 434,919.30 and 102,913.24

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Solution

The fourth proportional to 289,917.40, 434,919.30 and 102,913.24 is: 154,385.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,917.40 : 434,919.30 = 102,913.24 : x
  2. Step 2: Convert to fraction form
    289,917.40/434,919.30 = 102,913.24/x
  3. Step 3: Cross multiply
    289,917.40x = 434,919.30 × 102,913.24
  4. Step 4: Simplify right side
    289,917.40x = 44,758,954,301.53
  5. Step 5: Solve for x
    x = 44,758,954,301.53/289,917.40
  6. Step 6: Final answer
    x = 154,385.19

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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.