Home / 438,022.08-657,135.72-185,325.30

Finding the Fourth Proportional to 438,022.08, 657,135.72 and 185,325.30

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Solution

The fourth proportional to 438,022.08, 657,135.72 and 185,325.30 is: 278,031.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,022.08 : 657,135.72 = 185,325.30 : x
  2. Step 2: Convert to fraction form
    438,022.08/657,135.72 = 185,325.30/x
  3. Step 3: Cross multiply
    438,022.08x = 657,135.72 × 185,325.30
  4. Step 4: Simplify right side
    438,022.08x = 121,783,874,449.72
  5. Step 5: Solve for x
    x = 121,783,874,449.72/438,022.08
  6. Step 6: Final answer
    x = 278,031.36

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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.