Home / 219,178.11-302,462.81-122,383.46

Finding the Fourth Proportional to 219,178.11, 302,462.81 and 122,383.46

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Solution

The fourth proportional to 219,178.11, 302,462.81 and 122,383.46 is: 168,887.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,178.11 : 302,462.81 = 122,383.46 : x
  2. Step 2: Convert to fraction form
    219,178.11/302,462.81 = 122,383.46/x
  3. Step 3: Cross multiply
    219,178.11x = 302,462.81 × 122,383.46
  4. Step 4: Simplify right side
    219,178.11x = 37,016,443,084.89
  5. Step 5: Solve for x
    x = 37,016,443,084.89/219,178.11
  6. Step 6: Final answer
    x = 168,887.50

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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.