Home / 438,023.08-657,137.22-185,326.30

Finding the Fourth Proportional to 438,023.08, 657,137.22 and 185,326.30

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Solution

The fourth proportional to 438,023.08, 657,137.22 and 185,326.30 is: 278,032.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,023.08 : 657,137.22 = 185,326.30 : x
  2. Step 2: Convert to fraction form
    438,023.08/657,137.22 = 185,326.30/x
  3. Step 3: Cross multiply
    438,023.08x = 657,137.22 × 185,326.30
  4. Step 4: Simplify right side
    438,023.08x = 121,784,809,574.89
  5. Step 5: Solve for x
    x = 121,784,809,574.89/438,023.08
  6. Step 6: Final answer
    x = 278,032.86

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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.