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Finding the Fourth Proportional to 218,956.79, 302,160.24 and 118,354.79

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Solution

The fourth proportional to 218,956.79, 302,160.24 and 118,354.79 is: 163,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,956.79 : 302,160.24 = 118,354.79 : x
  2. Step 2: Convert to fraction form
    218,956.79/302,160.24 = 118,354.79/x
  3. Step 3: Cross multiply
    218,956.79x = 302,160.24 × 118,354.79
  4. Step 4: Simplify right side
    218,956.79x = 35,762,112,506.95
  5. Step 5: Solve for x
    x = 35,762,112,506.95/218,956.79
  6. Step 6: Final answer
    x = 163,329.54

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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.