Home / 393,022.08-589,446.72-156,320.64

Finding the Fourth Proportional to 393,022.08, 589,446.72 and 156,320.64

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Solution

The fourth proportional to 393,022.08, 589,446.72 and 156,320.64 is: 234,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,022.08 : 589,446.72 = 156,320.64 : x
  2. Step 2: Convert to fraction form
    393,022.08/589,446.72 = 156,320.64/x
  3. Step 3: Cross multiply
    393,022.08x = 589,446.72 × 156,320.64
  4. Step 4: Simplify right side
    393,022.08x = 92,142,688,516.30
  5. Step 5: Solve for x
    x = 92,142,688,516.30/393,022.08
  6. Step 6: Final answer
    x = 234,446.60

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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.