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Finding the Fourth Proportional to 219,471.12, 302,871.60 and 118,869.12

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Solution

The fourth proportional to 219,471.12, 302,871.60 and 118,869.12 is: 164,040.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,471.12 : 302,871.60 = 118,869.12 : x
  2. Step 2: Convert to fraction form
    219,471.12/302,871.60 = 118,869.12/x
  3. Step 3: Cross multiply
    219,471.12x = 302,871.60 × 118,869.12
  4. Step 4: Simplify right side
    219,471.12x = 36,002,080,564.99
  5. Step 5: Solve for x
    x = 36,002,080,564.99/219,471.12
  6. Step 6: Final answer
    x = 164,040.17

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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.