Home / 219,452.09-302,840.27-122,658.20

Finding the Fourth Proportional to 219,452.09, 302,840.27 and 122,658.20

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Solution

The fourth proportional to 219,452.09, 302,840.27 and 122,658.20 is: 169,266.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,452.09 : 302,840.27 = 122,658.20 : x
  2. Step 2: Convert to fraction form
    219,452.09/302,840.27 = 122,658.20/x
  3. Step 3: Cross multiply
    219,452.09x = 302,840.27 × 122,658.20
  4. Step 4: Simplify right side
    219,452.09x = 37,145,841,873.84
  5. Step 5: Solve for x
    x = 37,145,841,873.84/219,452.09
  6. Step 6: Final answer
    x = 169,266.30

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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.