Home / 289,488.20-434,232.30-178,896.20

Finding the Fourth Proportional to 289,488.20, 434,232.30 and 178,896.20

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Solution

The fourth proportional to 289,488.20, 434,232.30 and 178,896.20 is: 268,344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,488.20 : 434,232.30 = 178,896.20 : x
  2. Step 2: Convert to fraction form
    289,488.20/434,232.30 = 178,896.20/x
  3. Step 3: Cross multiply
    289,488.20x = 434,232.30 × 178,896.20
  4. Step 4: Simplify right side
    289,488.20x = 77,682,508,387.26
  5. Step 5: Solve for x
    x = 77,682,508,387.26/289,488.20
  6. Step 6: Final answer
    x = 268,344.30

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1.5x scale

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.