Home / 302,480.72-417,420-166,511.76

Finding the Fourth Proportional to 302,480.72, 417,420 and 166,511.76

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Solution

The fourth proportional to 302,480.72, 417,420 and 166,511.76 is: 229,784.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,480.72 : 417,420 = 166,511.76 : x
  2. Step 2: Convert to fraction form
    302,480.72/417,420 = 166,511.76/x
  3. Step 3: Cross multiply
    302,480.72x = 417,420 × 166,511.76
  4. Step 4: Simplify right side
    302,480.72x = 69,505,338,859.20
  5. Step 5: Solve for x
    x = 69,505,338,859.20/302,480.72
  6. Step 6: Final answer
    x = 229,784.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.