Home / 430,729.60-646,139.76-150,249.28

Finding the Fourth Proportional to 430,729.60, 646,139.76 and 150,249.28

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Solution

The fourth proportional to 430,729.60, 646,139.76 and 150,249.28 is: 225,389.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,729.60 : 646,139.76 = 150,249.28 : x
  2. Step 2: Convert to fraction form
    430,729.60/646,139.76 = 150,249.28/x
  3. Step 3: Cross multiply
    430,729.60x = 646,139.76 × 150,249.28
  4. Step 4: Simplify right side
    430,729.60x = 97,082,033,719.37
  5. Step 5: Solve for x
    x = 97,082,033,719.37/430,729.60
  6. Step 6: Final answer
    x = 225,389.74

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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.