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Finding the Fourth Proportional to 219,408.47, 302,783.69 and 118,806.47

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Solution

The fourth proportional to 219,408.47, 302,783.69 and 118,806.47 is: 163,952.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,408.47 : 302,783.69 = 118,806.47 : x
  2. Step 2: Convert to fraction form
    219,408.47/302,783.69 = 118,806.47/x
  3. Step 3: Cross multiply
    219,408.47x = 302,783.69 × 118,806.47
  4. Step 4: Simplify right side
    219,408.47x = 35,972,659,274.52
  5. Step 5: Solve for x
    x = 35,972,659,274.52/219,408.47
  6. Step 6: Final answer
    x = 163,952.92

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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.