Home / 430,247.59-645,665.42-149,764.84

Finding the Fourth Proportional to 430,247.59, 645,665.42 and 149,764.84

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Solution

The fourth proportional to 430,247.59, 645,665.42 and 149,764.84 is: 224,749.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,247.59 : 645,665.42 = 149,764.84 : x
  2. Step 2: Convert to fraction form
    430,247.59/645,665.42 = 149,764.84/x
  3. Step 3: Cross multiply
    430,247.59x = 645,665.42 × 149,764.84
  4. Step 4: Simplify right side
    430,247.59x = 96,697,978,319.83
  5. Step 5: Solve for x
    x = 96,697,978,319.83/430,247.59
  6. Step 6: Final answer
    x = 224,749.61

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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.