Home / 430,309.60-645,758.42-149,826.84

Finding the Fourth Proportional to 430,309.60, 645,758.42 and 149,826.84

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Solution

The fourth proportional to 430,309.60, 645,758.42 and 149,826.84 is: 224,842.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,309.60 : 645,758.42 = 149,826.84 : x
  2. Step 2: Convert to fraction form
    430,309.60/645,758.42 = 149,826.84/x
  3. Step 3: Cross multiply
    430,309.60x = 645,758.42 × 149,826.84
  4. Step 4: Simplify right side
    430,309.60x = 96,751,943,471.99
  5. Step 5: Solve for x
    x = 96,751,943,471.99/430,309.60
  6. Step 6: Final answer
    x = 224,842.63

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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.