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Finding the Fourth Proportional to 430,127.36, 645,375.36 and 149,491.52

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Solution

The fourth proportional to 430,127.36, 645,375.36 and 149,491.52 is: 224,301.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,127.36 : 645,375.36 = 149,491.52 : x
  2. Step 2: Convert to fraction form
    430,127.36/645,375.36 = 149,491.52/x
  3. Step 3: Cross multiply
    430,127.36x = 645,375.36 × 149,491.52
  4. Step 4: Simplify right side
    430,127.36x = 96,478,143,536.95
  5. Step 5: Solve for x
    x = 96,478,143,536.95/430,127.36
  6. Step 6: Final answer
    x = 224,301.34

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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.