Home / 289,532.66-434,192.24-99,944.78

Finding the Fourth Proportional to 289,532.66, 434,192.24 and 99,944.78

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Solution

The fourth proportional to 289,532.66, 434,192.24 and 99,944.78 is: 149,880.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,532.66 : 434,192.24 = 99,944.78 : x
  2. Step 2: Convert to fraction form
    289,532.66/434,192.24 = 99,944.78/x
  3. Step 3: Cross multiply
    289,532.66x = 434,192.24 × 99,944.78
  4. Step 4: Simplify right side
    289,532.66x = 43,395,247,904.51
  5. Step 5: Solve for x
    x = 43,395,247,904.51/289,532.66
  6. Step 6: Final answer
    x = 149,880.32

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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.